Geometry

05:06
The Pizza Theorem

5 months ago / 39 views

Watch my newest video, "The Game You Win By Losing (Parrondo's Paradox)": https://youtu.be/PpvboBJEozMGet Vsauce's favorite science and math toys delivered to your door!https://www.curiositybox.com/National Pizza Day is Saturday, February 9!*** LINKS ***T
15:22
Squaring a Doughnut

6 months ago / 40 views

***LINKS TO LEARN MORE BELOW***Numberphile's Video About Squared Squareshttps://www.youtube.com/watch?v=NoRjwZomUK0 Torus Gameshttp://www.geometrygames.org/TorusGames/index.html.en https://levsblog.quora.com/The-Topology-of-Pacmanhttp://www.squaring.net/s
18:38
Mbius Bagels

6 months ago / 73 views

'Tis the season to cut bagels into interlocked halves!! LEARN MORE:George Hart's article: https://www.georgehart.com/bagel/bagel.htmlGeorge Hart's video: https://www.youtube.com/watch?v=dN8AwGUaqDAEugenia Cheng's video: https://www.youtube.com/watch?v=NRv
15:30
The Mandelbrot Set

6 months ago / 68 views

I will send my brain food right to your door: http://www.curiositybox.com Twitter: http://twitter.com/DoOnlineNowGuysInstagram: http://instagr.am/doonlinenowguysVsauce PO Box: PO Box 33168 L.A. CA 90033***Click "SHOW MORE" For Links*** Mandelbrot Zoomhttp
18:59
The Four Color Theorem | Coloring a Planar Graph

6 months ago / 57 views

Train your problem solving skills today with SkillShare: https://skl.sh/upandatom3 Check out the video we did over on Willie's Channel! https://youtu.be/jwQlULjESTs Subscribe to Willie's Channel KhAnubis! https://www.youtube.com/user/tobirates The Four Co
16:07
Terrific Toothpick Patterns - Numberphile

8 months ago / 51 views

Fun with toothpicks. Featuring Neil Sloane. More links & stuff in full description below ↓↓↓ Neil Sloane is the founder of the On-Line Encyclopedia of Integer Sequences: https://oeis.org Play with the toothpick simulator: http://oeis.org/A139250/a139250.a
07:26
Incredible Rolling Objects which aren't Spheres!

8 months ago / 154 views

These strange solids roll in interesting and unexpected ways! Join me as we explore these curious geometries the Wobbler, Oloid and Steinmetz Solid. 3D Print your own with the files here - https://gumroad.com/products/QGsID/ Get your own stainless steel O
03:43
Can you solve the unstoppable blob riddle? - Dan Finkel

8 months ago / 147 views

A shooting star crashes onto Earth and unleashes a hideous, rampaging blob. Can you stop it from destroying the planet? -- A shooting star crashes onto Earth and a hideous blob emerges. It creeps and leaps, it glides and slides. It’s also unstoppabl
04:54
The problem in Good Will Hunting - Numberphile

9 months ago / 66 views

We now have a Tumblr: Tumblr: http://numberphile.tumblr.com This paper on ebay: http://www.ebay.co.uk/itm/221197137799? More links & stuff in full description below ↓↓↓ Just how hard was the second problem cracked by Will in Good Will H
06:02
The Perfect Stack of Maltesers

10 months ago / 99 views

Dr Eugenia Cheng, Senior Lecturer in Mathematics from the University of Sheffield, discusses the mathematics behind the perfect stack of Maltesers http://www.sheffield.ac.uk/maths
08:01
Surface Area to Volume Ratios - Christmas Lectures with Philip Morrison

11 months ago / 78 views

The mathematicians of Lilliput assumed that Gulliver would need 1728 times as much food as an individual Lilliput. Philip Morrison shows why this is not true, using surface area to volume ratios. Watch the full lecture: http://www.rigb.org/christmas-lectu
04:32
Can you solve the time travel riddle? - Dan Finkel

12 months ago / 185 views

Practice more problem-solving at https://brilliant.org/TedEd/ Solution to bonus riddle: https://brilliant.org/TedEdTimeTravel/ Your professor has accidentally stepped through a time portal in his physics lab. You’ve got just a minute to jump through befor
04:29
Can you solve the secret werewolf riddle? - Dan Finkel

1 year ago / 399 views

Practice more problem-solving at https://brilliant.org/TedEd/ Signup to receive the bonus riddle's solution: https://brilliant.org/TedEdWerewolf/ You’re on the trail of a werewolf that’s been terrorizing your town. After months of detective work, you’ve n
04:33
Fractals: The Geometry of Chaos - Christmas Lectures with Ian Stewart

1 year ago / 117 views

Using a simple set of mathematical rules, a very intricate geometry can be created in the form of fractals. The Sierpinski triangle is a famous example. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the full lecture: http://www.rig
02:00
Maps, States & Borders

1 year ago / 218 views

Deane challenges Rob with a mathematical problem concerning maps, states and borders. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤ https:/
04:39
The mysterious isochronous curve

1 year ago / 186 views

It's a big name, but the isochronous curve deserves it. Rob shows you how to draw one easily and then how to investigate its extraordinary properties.
01:51
How to cut a pipe squarely

1 year ago / 177 views

Cutting a section of pipe or cylindrical rod is tricky - the cut goes sideways or doesn't meet itself, but Rob shows a simple way to cut a pipe squarely every time.
01:41
Measuring Volume with a Ruler

1 year ago / 328 views

Deane demonstrates a method for measuring the volume of an irregular container. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤ https://twitt
05:39
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

1 year ago / 302 views

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou
14:53
THE SCUTOID: did scientists discover a new shape?

1 year ago / 161 views

Read the Nature paper for yourself: "Scutoids are a geometrical solution to three-dimensional packing of epithelia" https://www.nature.com/articles/s41467-018-05376-1 Thanks to Laura and Clara for helping me with the video! You can download Laura's model
04:22
How to Determine the Area of a Triangle Based on Coordinates of Its Vertices & Determinants

1 year ago / 193 views

How to Determine the Area of a Triangle Based on Coordinates of Its Vertices & Determinants. Part of the series: Finding and Using the Area of a Triangle. You can use the coordinates of a triangle's vertices and determines, along with a very specific rule
01:32
How to Solve for the Height of Cylinders

1 year ago / 358 views

How to Solve for the Height of Cylinders. Part of the series: Algebra Tips. Solving for the height of cylinders can be accomplished in just a few moments with the right equation. Learn how to solve for the height of cylinders with help from an experienced
01:14
How to Multiply to Get the Area of a Parallelogram

1 year ago / 387 views

How to Multiply to Get the Area of a Parallelogram. Part of the series: Perimeter, Area and Decimals. Multiplication is one way you can find the area of a parallelogram pretty easily. Multiply to get the area of a parallelogram with help from a longtime m
02:06
Types of Angles, Figures & Shapes

1 year ago / 318 views

Types of Angles, Figures & Shapes. Part of the series: Geometry Tips. many different types of angles, figures and shapes make up math in general as well as geometry. Learn about the types of angles, figures and shapes in geometry with help from a longtime
03:21
Can You Solve A Puzzle That Fooled Richard Feynman?

1 year ago / 226 views

What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi
05:48
What Is The Area? "You Should Be Able To Solve This"

1 year ago / 129 views

Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi
09:15
5-Sided Square - Numberphile

1 year ago / 271 views

Check our sponsor The Great Courses Plus (free trial): http://ow.ly/j5cB30hIvm2 This video features Cliff Stoll. More links & stuff in full description below ↓↓↓ More Cliff Stoll videos: http://bit.ly/Cliff_Videos Buy a Klein Bottle fro
04:46
Can you solve the Mondrian squares riddle? - Gordon Hamilton

1 year ago / 238 views

Practice more problem-solving at https://brilliant.org/TedEd/ Dutch artist Piet Mondrian’s abstract, rectangular paintings inspired mathematicians to create a two-fold challenge. Can you solve the puzzle and get to the lowest score possible? Gordon
06:13
Calculating the circumference of the Earth in 200 BC

1 year ago / 147 views

In one of the dopest displays of critical thinking in history, Eratosthenes estimated the circumference of the Earth. All he had was a pole, the sun, knowledge of a famous well in Egypt, and potentially money to pay someone to walk the distance between tw
02:43
The Man Teaching Math Lessons in the Sky

1 year ago / 108 views

Winfred Randolph Lowe, aka, “Randy the Kite Man,” is a retired math teacher taking geometry to new heights. For the past 20 years, Winfred has spent his free time flying kites. Now he’s combining his two favorite pastimes to teach the fundamentals of geom
02:04
Non-Euclidean Geometry of a Sphere - Christmas Lectures with Philip Morrison

1 year ago / 132 views

According to Euclidean geometry the angles of a triangle add up to 180 degrees. Philip Morrison shows an example of where this isn't true, and non-Euclidean geometry applies. Watch the full lecture: http://www.rigb.org/christmas-lectures/watch/1968/gulliv
03:24
Round Peg in a Square Hole - Numberphile

1 year ago / 195 views

Featuring Tadashi Tokieda - more Tadashi videos at: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Tadashi Tokieda is a Professor of Mathematics at Stanford University (though this was filmed when he was at Cambridge, in the U
06:39
Pythagoras Theorem Explained - Mathemagic with Bawa

1 year ago / 194 views

http://www.youtube.com/watch?v=49_TJymgXgM - Mathemagic - (a+b)²=a²+2ab+b² - But Why? One of the elementary formula in high school mathematics, most of us know this formula. But do we actually know why? In this video Khurshed Batliwala, fon
01:20
Proof Without Words: The Circle

1 year ago / 151 views

Prove πR² using only beads and a ruler! I first saw this proof in an article by Russell Jay Hendel, Dowling College: http://bit.ly/LQlwQw minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter -
06:11
Hexaflexaflakes

1 year ago / 176 views

I hope you enjoy this fun holiday craft! This video is supported by viewers like you! Thanks especially to: Caleb Wright, Albert Wenger, CHLOE, Pat Devlin, Jack Heidrick, Al3x, David Perryman, Wish Society, Carol Ghiorsi Hart, Chris Pierik, Andrea Di Biag
02:14
Visualizing the 600-Cell

2 years ago / 172 views

Mathematician/geometer Dugan Hammock of Quantum Gravity Research shows us a visualization of the 4-dimensional 600-Cell projected to 3D object (further projected, technically, to 2D on his computer screen.) The 600-Cell is a 4-dimensional shape made of 60
05:17
How many ways are there to prove the Pythagorean theorem? - Betty Fei

2 years ago / 234 views

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-many-ways-are-there-to-prove-the-pythagorean-theorem-betty-fei What do Euclid, 12-year-old Einstein, and American President James Garfield have in c
01:42
Finding height of a parallelogram

2 years ago / 263 views

Finding height of a parallelogram
01:31
Example finding area of triangle

2 years ago / 246 views

Example finding area of triangle
03:09
Triangle missing side example

2 years ago / 206 views

Triangle missing side example
03:29
Recognizing common 3D shapes

2 years ago / 266 views

Recognizing common 3D shapes
04:17
How volume changes from changing dimensions

2 years ago / 255 views

How volume changes from changing dimensions
04:35
Surface area word problem example

2 years ago / 271 views

Surface area word problem example
03:00
Partial circle area and arc length

2 years ago / 250 views

Partial circle area and arc length
04:51
Relating circumference and area

2 years ago / 237 views

Relating circumference and area
03:48
Pythagorean theorem with right triangle

2 years ago / 226 views

Pythagorean theorem with right triangle
04:00
Area of an isosceles triangle

2 years ago / 244 views

Area of an isosceles triangle
03:41
Example finding distance with Pythagorean theorem

2 years ago / 250 views

Example finding distance with Pythagorean theorem
22:41
Calculating the optimal sphere packing density: with oranges

2 years ago / 229 views

Check out the corresponding video I made with Steve Mould for his channel. https://youtu.be/O3RsDIWB7s0 Thomas Hales’s proof of the Kepler Conjecture. http://annals.math.princeton.edu/wp-content/uploads/annals-v162-n3-p01.pdf The Kepler Conjecture on wiki
12:55
Math Antics - The Pythagorean Theorem

2 years ago / 552 views

Learn more at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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13:00
The Moving Sofa Problem - Numberphile

2 years ago / 232 views

Featuring Dan Romik from UC Davis. More footage from this interview soon on Numberphile2. Dan's comprehensive page on this topic: http://bit.ly/movingsofa Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRIN
12:33
Pascal's Triangle - Numberphile

2 years ago / 228 views

Just a few fun properties of Pascal's Triangle - discussed by Casandra Monroe, undergraduate math major at Princeton University. Filmed during the MSRI-UP summer program. Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): htt
04:32
Math Word problems - Solving triangles

2 years ago / 304 views

Become an expert in solving math word problems! In this problem you will learn how to use triangles to solve the height of a building. A man steps back 50 feet which the angle to the top of the building change 15 degrees. Using this information find the h
05:04
Area of a Triangle - Fun challenging math problem

2 years ago / 391 views

Can you solve the area of a triangle given points X and Y. This is not a basic problem, but it is a fun and challenging math problem. See if you are smart enough to find the area of a triangle for yourself. My name is Chris and my passion is to teach math
03:41
Polygons Song For Kids Rap Video: Geometry Quadrilaterals Hexagons etc.

2 years ago / 540 views

Full lesson plan and more: http://numberock.com/polygons/ Description: Alan kite surfs, skateboards, bikes, dives, and explores space as he learns about Triangles, Quadrilaterals, Pentagons, Hexagons, Heptagons, Octagons, Nonagons, and Decagons. These sha
04:55
Solve the right triangle - Trigonometry Brain Teaser

2 years ago / 452 views

A square is inside of a right triangle. The length of each side of the triangle is 3-4-5. Given this information what are the dimensions of the square? Can you solve this right triangle? My name is Chris and my passion is to teach math. Learning should ne
25:57
The Brachistochrone

2 years ago / 296 views

BRAIN CANDY LIVE TICKETS: http://www.braincandylive.com/tickets Links to sources and to learn more below! MY TWITTER: http://www.twitter.com/tweetsauce MY INSTAGRAM: http://www.instagram.com/electricpants THE CURIOSITY BOX: https://www.curiositybox.com/ S
01:20
How Giant Lava Caves on Earth May Help Us Survive on Mars | National Geographic

2 years ago / 252 views

The first humans to arrive on Mars will experience life-threatening conditions including intense radiation, dust storms, and extreme temperatures. Researchers are mapping lava tubes at the Craters of the Moon National Monument in Idaho in hopes that their
05:24
Math Challenge - Shrinking Pool Problem

2 years ago / 411 views

Think you can solve this math challenge? Every time a boy jumps into the pool it shrinks by a certain amount. Thy boy jumps into the pool 3 times. You must find the original length of the pool My name is Chris and my passion is to teach math. Learning sho
01:32
Easy Puzzle - But can you solve it?

2 years ago / 258 views

Solve this puzzle by cutting the piece of wood into two pieces. Both pieces must fit exactly into the hole. Can you solve this easy puzzle? Watch the video and find out. My name is Chris and my passion is to teach math. Learning should never be a struggle
31:51
Geometry: An Interactive Journey to Mastery | The Great Courses

2 years ago / 280 views

https://www.thegreatcoursesplus.com/geometry-an-interactive-journey-to-mastery?utm_source=US_SocialMedia&utm_medium=SocialMediaEditorialYoutube&utm_campaign=138569 Like other math fields, geometry teaches us how to think. It leads students to uncover new
04:13
Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

3 years ago / 278 views

A marshmallow has the shape of a cylinder with diameter 5 and height 3. A dessert is made with 24 marshmallows: there are two stacked layers of marshmallows, and each layer has 3 rows of 4 marshmallows. The gaps between the marshmallows are filled with ch
09:11
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

3 years ago / 340 views

Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p
05:57
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

3 years ago / 508 views

This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad
09:03
Space-Filling Curves - Numberphile

3 years ago / 243 views

Henry Segerman shows us some 3D-printed space-filling curves, including the Hilbert Curve and Dragon Curve. Check Henry's book about 3D printing math: http://amzn.to/2cWhY3R More Henry videos: http://bit.ly/Segerman_Videos Dragon Curve videos: http://bit.
06:13
Aluminium - The Material That Changed The World

3 years ago / 229 views

Thanks to the vlogbrothers for sponsoring this video. Have been following their work for years, it feels great to be supported by my role models! Thank you to my patreon supporters: Adam Flohr, darth patron, Zoltan Gramantik, Josh Levent, Henning Basma. T
08:05
Can You Solve The Hardest Easy Geometry Problem?

3 years ago / 402 views

In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you
12:36 Popular
Math Antics - Volume

3 years ago / 761 views

Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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06:31
Proof - Sum of Measures of Angles in a Triangle are 180

3 years ago / 328 views

Proof that the sum of the measures of the angles in a triangle are 180
02:49
Ordering Triangle Sides And Angles

3 years ago / 296 views

Ordering triangle sides and angles
04:29
Mathematical Present Wrapping

3 years ago / 288 views

Mathematician Katie Steckles takes you through some mathematically satisfying ways to wrap presents using paper.
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03:36
Finding Radius And Diameter From Circumference

3 years ago / 258 views

Finding radius and diameter from circumference
09:26
Informal Argument For The Area Of Circle Formula

3 years ago / 256 views

Informal argument for the area of circle formula
08:41
Proving Radius Is Perpendicular To Tangent Line

3 years ago / 242 views

Proving radius is perpendicular to tangent line
03:01
Hypotenuse Leg Congruence

3 years ago / 241 views

Hypotenuse leg congruence
03:56
Segments Tangent To Circle From Outside Point Congruent

3 years ago / 243 views

Segments tangent to circle from outside point congruent
04:37
Tangents Of Circles Exercise Examples

3 years ago / 234 views

Tangents of circles exercise examples
04:58
Example Showing Supplementary Oppositie Angles In Inscribed Quadrilateral

3 years ago / 305 views

Example showing supplementary oppositie angles in inscribed quadrilateral
03:56
Proving The Opposite Angles Of Inscribed Quadrilateral Are Supplementary

3 years ago / 544 views

Proving the opposite angles of inscribed quadrilateral are supplementary
01:35
Seeing Circle Similarity Through Translation And Dilation

3 years ago / 242 views

Seeing circle similarity through translation and dilation
01:20
Inscribed Angles Exercise Example

3 years ago / 315 views

Inscribed angles exercise example
05:27
Arc Measure

3 years ago / 233 views

Introduction to arc measure (and a comparison to arc length).
06:36
Arc Measure Example Problems

3 years ago / 300 views

Arc measure example problems
06:58
Arc Measure With Equations Examples

3 years ago / 251 views

Arc measure with equations examples
05:49
Solving For Unknown Angle

3 years ago / 220 views

Solving for unknown angle. One method using an inscribed angle intercepting a diameter of a circle.
02:10
Finding Inscribed Angle Measure

3 years ago / 248 views

Finding inscribed angle measure
06:35
Bisecting Yin And Yang - Brain Teaser

3 years ago / 357 views

Can you bisect yin and yang using a straight line? Find the solution to this brain teaser in this video. I also have a bunch of other fun brain teasers as well. Heaven and hell - Brain Teaser https://www.youtube.com/watch?v=YOgKI0HWCnA Two burning ropes -
02:18
The Volume Song For Kids: Online Education Rap, Pop & Hip-Hop

4 years ago / 374 views

Worksheets, Cloze, Quiz, and more at Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] Subscribe to Our YouTube Channel! http://goo.gl/3H3bJ6 This song makes makes it clear how to measure the volume of different things... like a robot!
02:22
Types Of Lines Song: Online Education Student Music Videos

4 years ago / 442 views

Get the Companion Worksheet Set and other Video-Linked Teaching Resources at: Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] Subscribe to Our YouTube Channel here: http://goo.gl/3H3bJ6 Learn about Parallel, Perpendicular, and Inters
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01:47
Types Of Angles Song: Online Education Songs For Kids

4 years ago / 540 views

Worksheets, Cloze, Quiz, and more at Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] Stop right here: YOU have found the most fun way to learn about Right Angles, Acute Angles, and Obtuse Angles ever! SUBSCRIBE to our YouTube Channel
02:56
Capacity Song For Kids: Online Education Songs For Kids

4 years ago / 621 views

Worksheets, Cloze, Quiz, and more at Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] Capacity's Not Exactly Volume. Learn why, here! There's more where this came from! http://goo.gl/3H3bJ6 LYRICS: ____________________________________
02:05
3D SHAPES SONG: Online Education Shape Songs Collection

4 years ago / 539 views

Get the Companion Worksheet Set and other Video-Linked Teaching Resources at: Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] SUBSCRIBE TO OUR YOUTUBE CHANNEL: http://goo.gl/3H3bJ6 Learn the definition of various 3-D shapes through e
01:56
Types Of Triangles Song - Online Education Songs For Kids

4 years ago / 452 views

Worksheets, Cloze, Quiz, and more at Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] Triangle, tell me your secrets. Are you Scalene, Isosceles, Right, Equilateral, Obtuse or Acute? There's more where this came from! http://goo.gl/3H
03:59
Volume Word Problems — Basic Example | Math | New SAT | Khan Academy

4 years ago / 279 views

Watch Sal work through a basic Volume word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s1-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previous
05:09
Volume Word Problems — Harder Example | Math | New SAT | Khan Academy

4 years ago / 262 views

Watch Sal work through a harder Volume word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s2-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previou
03:52
Right Triangle Word Problems — Basic Example | Math | New SAT | Khan Academy

4 years ago / 266 views

Watch Sal work through a basic Right triangle word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s2-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
05:33
Right Triangle Word Problems — Harder Example | Math | New SAT | Khan Academy

4 years ago / 280 views

Watch Sal work through a harder Right triangle word problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s6-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
03:52
Angles, Arc Lengths, And Trig Functions — Basic Example | Math | New SAT | Khan Academy

4 years ago / 274 views

Watch Sal work through a basic Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s4-harder?utm_source=YT&utm_medium=Desc&utm_campaig
03:45
Angles, Arc Lengths, And Trig Functions — Harder Example | Math | New SAT | Khan Academy

4 years ago / 286 views

Watch Sal work through a harder Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s5-easier?utm_source=YT&utm_medium=Desc&utm_campai
04:28
Circle Theorems — Basic Example | Math | New SAT | Khan Academy

4 years ago / 321 views

Watch Sal work through a basic Circle theorems problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s5-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev
04:10
Circle Theorems — Harder Example | Math | New SAT | Khan Academy

4 years ago / 346 views

Watch Sal work through a harder Circle theorems problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s8-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre
04:19
Congruence And Similarity — Basic Example | Math | New SAT | Khan Academy

4 years ago / 262 views

Watch Sal work through a basic Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s6-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse
03:18
Congruence And Similarity — Harder Example | Math | New SAT | Khan Academy

4 years ago / 252 views

Watch Sal work through a harder Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s7-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Miss
08:17
Right Triangle Geometry — Basic Example | Math | New SAT | Khan Academy

4 years ago / 278 views

Watch Sal work through a basic Right triangle geometry problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s7-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed
03:43
Right Triangle Geometry — Harder Example | Math | New SAT | Khan Academy

4 years ago / 228 views

Watch Sal work through a harder Right triangle geometry problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s4-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed
01:53
Circle Equations — Basic Example | Math | New SAT | Khan Academy

4 years ago / 301 views

Watch Sal work through a basic Circle equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s8-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre
02:49
Circle Equations — Harder Example | Math | New SAT | Khan Academy

4 years ago / 261 views

Watch Sal work through a harder Circle equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s3-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pr
05:02
Positive And Negative Slope | Algebra I | Khan Academy

4 years ago / 301 views

Positive and negative slope Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/slope/v/similar-triangles-to-prove-that-the-slope-is-constant-for-a-line?utm_source=YT&utm_medium=Desc&utm_campaign
02:34
Converting From Standard Form To Slope-intercept Form | Algebra I | Khan Academy

4 years ago / 349 views

Standard form to slope-intercept form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/standard-form/e/slope-from-an-equation-in-standard-form?utm_source=Y
02:35
Interpreting Linear Formulas Example 2 | Algebra I | Khan Academy

4 years ago / 231 views

Linear equation for file transfer Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/interpreting_linear_functions/e/interpreting-features-of-linear-function
05:30
Graphing Linear Functions Example 1 | Algebra I | Khan Academy

4 years ago / 244 views

Learn how graph a linear function. This video gives an example of graphing fuel consumption as a function of distance. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-
03:12
Graphing Linear Functions Example 2 | Algebra I | Khan Academy

4 years ago / 282 views

Graphing equation for filling pool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/linear-functions-modeling/e/graphing-linear-functions-word-problems?utm
01:07
How To Match Function Input To Output Given The Graph (example) | Algebra I | Khan Academy

4 years ago / 241 views

Sal finds the input value for which g(x)=-2 given the graph of g. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inputs_outputs?utm_so
01:49
How To Find Two Function Inputs With The Same Output Given Graph (example) | Khan Academy

4 years ago / 270 views

Sal finds the input value other than -5 for which f(x)=f(-5), given the graph of f. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inp
05:09
Converting From Slope-intercept To Standard Form | Algebra I | Khan Academy

4 years ago / 327 views

Converting from slope-intercept to standard form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/standard-form/e/converting_between_slope_intercept_and_st
07:23
Introduction To Transformations | Transformations | Geometry | Khan Academy

4 years ago / 288 views

Introduction to transformations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-translations-on-the-coordinate-plane?utm_source=YT&utm_medium=De
01:37
Translation Example | Transformations | Geometry | Khan Academy

4 years ago / 302 views

Translation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-translations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campa
01:25
Using Rotation Widget | Transformations | Geometry | Khan Academy

4 years ago / 289 views

Using rotation widget Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-rotations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campai
01:48
Using Reflection Tool | Transformations | Geometry | Khan Academy

4 years ago / 375 views

Using reflection tool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-reflections-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_camp
01:32
Formal Translation Tool Example | Transformations | Geometry | Khan Academy

4 years ago / 294 views

Formal translation tool example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-translations/e/defining-translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the
01:55
Drawing Image Of Translation | Transformations | Geometry | Khan Academy

4 years ago / 324 views

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-translations/e/translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org
02:46
Defining Rotation Example | Transformations | Geometry | Khan Academy

4 years ago / 308 views

Defining rotation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/defining-rotations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson
05:41
Points On Line Of Reflection | Transformations | Geometry | Khan Academy

4 years ago / 297 views

Points on line of reflection Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/e/defining-reflections?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next
07:19
Reflecting Segments Over Line | Transformations | Geometry | Khan Academy

4 years ago / 280 views

Reflecting segments over line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/e/reflections-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesso
02:28
Drawing Line Of Reflection | Transformations | Geometry | Khan Academy

4 years ago / 321 views

Drawing line of reflection Watch the next lesson: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/v/determining-the-line-of-reflection?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www
10:32
Rotating About Arbitrary Point | Transformations | Geometry | Khan Academy

4 years ago / 297 views

Rotating about arbitrary point Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson:
08:13
Points After Rotation | Transformations | Geometry | Khan Academy

4 years ago / 295 views

Points after rotation Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://w
04:50
The Mathematical Secrets Of Pascal’s Triangle - Wajdi Mohamed Ratemi

4 years ago / 329 views

View full lesson: http://ed.ted.com/lessons/the-mathematical-secrets-of-pascal-s-triangle-wajdi-mohamed-ratemi Pascal’s triangle, which at first may just look like a neatly arranged stack of numbers, is actually a mathematical treasure trove. But what abo
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Coordinates For Triangle Example

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Example Finding Area With Fractional Sides

4 years ago / 324 views

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4 years ago / 358 views

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Intuition For Area Of A Parallelogram

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4 years ago / 455 views

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4 years ago / 273 views

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Topology, Geometry And Life In Three Dimensions

4 years ago / 299 views

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Examples Interpreting Graphs Of Proportional Relationships

4 years ago / 360 views

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Intervals When Function Is Increasing, Decreasing, Postive Or Negative

4 years ago / 334 views

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Average Rate Of Change From Graph

4 years ago / 328 views

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4 years ago / 355 views

Zsuzsanna Dancso trisects an angle using origami - follows on from this video about Euclidean geometry: http://youtu.be/6Lm9EHhbJAY Special thanks to the Patreon supporters listed below: Herschal Sanders (from Susan) Lê OK Merli Alex Bozzi Thomas J
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4 years ago / 402 views

Trisecting angles and calculating cube roots was a big problem for Euclid and his cohorts. Discussed by Zsuzsanna Dancso at MSRI. TRISECT WITH ORIGAMI: http://youtu.be/SL2lYcggGpc CIRCLE THE SQUARE: http://youtu.be/CMP9a2J4Bqw NUMBERPHILE Website: http://
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4 years ago / 394 views

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Arc Length As Fraction Of Circumference

4 years ago / 580 views

Arc length as fraction of circumference More free lessons at: http://www.khanacademy.org/video?v=XFI7GK4Nv-s
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Introduction To Line Plots

4 years ago / 313 views

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Idea Behind Hypothesis Testing

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Area Of Triangle In Grid

4 years ago / 306 views

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Line And Angle Proofs Exercise

4 years ago / 281 views

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Showing Angles Have Same Measure

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4 years ago / 410 views

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4 years ago / 1,522 views

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4 years ago / 339 views

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4 years ago / 327 views

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4 years ago / 284 views

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4 years ago / 319 views

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4 years ago / 382 views

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4 years ago / 357 views

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4 years ago / 273 views

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4 years ago / 277 views

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4 years ago / 363 views

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4 years ago / 393 views

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4 years ago / 280 views

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4 years ago / 278 views

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4 years ago / 286 views

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4 years ago / 263 views

U04_L1_T1_we1 : Slope of a line More free lessons at: http://www.khanacademy.org/video?v=R948Tsyq4vA Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education
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4 years ago / 322 views

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