Geometry

01:00
The Craziest Fact I Know  String Around The Earth Puzzle
/ 23 viewsThe String girdling Earth is a mathematical puzzle with a counterintuitive solution. In a version of this puzzle, string is tightly wrapped around the equator of a perfectly spherical Earth. If the string should be raised 1 meter (3 ft 3 in) off the groun

18:25 Popular
The SAT Question Everyone Got Wrong
/ 1,611 viewsHow an SAT question became a mathematical paradox. Head to https://brilliant.org/veritasium to start your free 30day trial, and the first 200 people get 20% off an annual premium subscription.I invented Snatoms, a molecule modeling kit where the atoms sn
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08:51
The object we thought was impossible
/ 61 viewsThe first 100 people to use code SCIENCE at the link below will get 60% off of Incogni: https://incogni.com/scienceSteffen's polyhedron is a flexible concave polyhedron. Euler thought such a shape was impossible. I also show infinitesimally flexible polyh

31:12
How One Line in the Oldest Math Text Hinted at Hidden Universes
/ 87 viewsDiscover strange new universes that turn up at the core of Einsteins General Relativity. Head to https://brilliant.org/veritasium to start your free 30day trial, and the first 200 people get 20% off an annual premium subscription.If youre looking for a m

06:37
Why Penrose Tiles Never Repeat
/ 158 viewsThe first 200 people to https://brilliant.org/minutephysics get 20% off an annual premium subscription to Brilliant. Thanks to Brilliant for their support.This video is about a better way to understand Penrose tilings (the famous tilings invented by Roger

All About Topology
/ 111 viewsPlastic version: http://shpws.me/HEtjThis is joint work with Keenan Crane.I never said it was a good joke.

35:21
How The Most Useless Branch of Math Could Save Your Life
/ 73 viewsThere is an entire branch of math simply devoted to knots and it has changed the world. Well rope you in. Head to https://brilliant.org/veritasium to start your free 30day trial, and the first 200 people get 20% off an annual premium subscription.Huge th

04:17
These shapes roll in peculiar ways thanks to new mathematics
/ 97 viewsThanks to a complex mathematical algorithm, these plastic shapes follow a very specific route as they roll. In fact, researchers have shown that a shape can be designed to follow almost any path you can think of. What started out as just an interesting ch

00:47
the circle dot trick
/ 140 viewsCan you figure out how to draw a circle without ever lifting your pen from the center dot and no lines in the middle?

12:39
Math Antics  Data And Graphs
/ 175 viewsLearn More at mathantics.comVisit http://www.mathantics.com for more Free math videos and additional subscription based content!

06:07
Doodling in Math: Spirals, Fibonacci, and Being a Plant [Part 3 of 3]
/ 111 viewsNotes and References: http://youtu.be/POKWkuwoihM Part 1: http://youtu.be/ahXIMUkSXX0 Part 2: http://youtu.be/lOIP_Z_0Hs How to find the Lucas Angle: http://youtu.be/RRNQAaTVa_A My personal website, which you might like: http://vihart.com

06:14
Doodling in Math Class: Spirals, Fibonacci, and Being a Plant [2 of 3]
/ 88 viewsPart 1: http://youtu.be/ahXIMUkSXX0 Part 3: http://youtu.be/14NdQwKz9w More on Angleatrons: http://www.youtube.com/watch?v=o6W6P8JZW0o Here is a program that draws plant leaves at whatever angle you want: http://www.khanacademy.org/cs/plantleaves/8229

05:55
Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3]
/ 94 viewsPart 2: http://youtu.be/lOIP_Z_0Hs Part 3: http://youtu.be/14NdQwKz9w Re: Pineapple under the Sea: http://youtu.be/gBxeju8dMho My personal website, which you might like: http://vihart.com

13:57
Pythagoras Would Be Proud: High School Students' New Proof of the Pythagorean Theorem [TRIGONOMETRY]
/ 133 viewsCalcea Johnson and Ne’Kiya Jackson are two high school students at St. Mary's Academy in New Orleans who recently presented a new proof of the Pythagorean theorem at the Spring Southeastern Sectional Meeting of the American Mathematical Society. The

08:06
Tunnelling through a Mountain  Numberphile
/ 94 viewsFeaturing Professor Hannah Fry  more details on her work below. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Hannah Fry: https://h

02:01
Intro to Angles Lesson for Kids
/ 144 viewsFULL EPISODES: https://www.GenerationGenius.com/watch

03:14
Pi from a Toothpick
/ 150 viewsEstimate the value of pi using a toothpick!Want the full details as to why throwing a toothpick on a lined piece of paper gives you an estimate of the value of pi? Then see this video from Numberphile:https://youtu.be/sJVivjuMfWA

02:18
Tie a string around the world
/ 131 viewsThis seems a difficult problem, but simple mathematics can sometimes beat intuition, as Rob shows. See how you get on.

10:54
NonEuclidean Geometry Explained  Hyperbolica Devlog #1
/ 169 viewsI present the easiest way to understand curved spaces, in both hyperbolic and spherical geometries. This is the first in a series about the development of Hyperbolica. Chapters: 0:00 Intro 0:24 Spherical Geometry 2:33 Hyperbolic Introduction 3:53 Projecti

00:26
How Egyptians Made Right Angles #shorts
/ 244 viewsThe Egyptians didn't know the Pythagorean Theorem, but they figured out a way to make perfect 345 right triangles using segments of rope. It's so common sense, unsophisticated, and elegant that it's an example of a proof without words AND mathematical b

00:58
The (Nearly) Perfect Pi Approximation #shorts
/ 489 viewsWe can't write out every digit of Pi every time we use it, but we've got to represent it somehow. And you were probably taught that 22/7 was a great option. Well... it's an okay option. It's not bad, but it's not amazing.355/113 is so close to the real va

22:58
Geometry Introduction  Basic Overview  Review For SAT, ACT, EOC, Midterm Final Exam
/ 446 viewsThe full version of this geometry review tutorial provides a basic introduction into common topics taught in geometry such as angles and measurement, area, perimeter, volume, surface area. It covers shapes such as circles, squares, rectangles, right trian

02:45
ASTEROIDS Size Comparison 2
/ 242 viewsIn this second part of the asteroid comparison, some of the currently best known asteroids are shown, some comets and some fictitious ones.~  Approximate  Error range*UM  Unreliable MeasureMUSIC: (YouTube Library) Chtulthu  Quincas MoreiraSOURCES:Arma

00:59
Do Triangles Have Four Sides? #shorts
/ 535 views#shirt #shorts join our brain food club to get it! http://www.curiositybox.comIn this short, we say hello to the "Sherman line"  a feature of all triangles that made B.F. Sherman say, "what else was there to call [it] but the fourth side of the triangle

09:27
Hexagons are the Bestagons
/ 386 viewsBehind the Scenes: https://www.youtube.com/watch?v=4R3N1oeKbE4 Hexagons are the Bestagons shirt: https://store.dftba.com/collections/all/products/hexagonstshirt Thank you Crowdfunders for making this video possible: https://www.patreon.com/cgpgrey Discu

22:55 Popular
The Golden Ratio: Is It Myth or Math?
/ 869 viewsWere on PATREON! Join the community https://www.patreon.com/itsokaytobesmartSUBSCRIBE so you dont miss a video! http://bit.ly/iotbs_sub More info and sources below The golden ratio. Some say its the most mythical number in the universe. Others say it unde

38:28
A Miraculous Proof (Ptolemy's Theorem)  Numberphile
/ 278 viewsFeaturing Zvezdelina Stankova... Want more? Part 2 (bringing in Pentagons and the Golden Ratio) is at: https://youtu.be/o3QBgkQi_HAMore links & stuff in full description below Zvezda's Numberphile playlist: http://bit.ly/zvezda_videosZvezda's webpage: htt

21:19
The Mandelbrot Set  The only video you need to see!
/ 445 viewsThis video has been edited together from several documentaries to describe the Mandelbrot set in a simple, introduction/beginner fashion! What is the Mandelbrot set? An incredible mathematical formula explaining fractals and geometry! Several mathematicia

05:37
The Hardest Mandelbrot Zoom in 2017  New record, 750 000 000 iterations!
/ 507 viewsA Mandelbrot is a mathematical formula that can be represented mathematically as:The Mandelbrot set can be explained with the equation zn+1 = zn2 + c. In that equation, c and z are complex numbers and n is zero or a positive integer (natural number). Star

05:48 Popular
How Does a RealLife Escherian Staircase Work?
/ 1,017 viewsIn this video I show you a 3d printed infinite staircase also called an Escherian staircase after M.C Escher. I talk about how this staircase can actually be possible in Nil space using noneuclidean geometry. Ascending in Nil Video: https://www.youtube.c

10:44
The Napkin Ring Problem
/ 307 viewsBrain Candy Live FALL TOUR: http://www.braincandylive.com/ticketsThe Curiosity Box: https://www.curiositybox.com/LINKS TO LEARN MORE BELOW!my twitter: http://www.twitter.com/tweetsauceAdam and I (but mainly Adam) making a kendama: https://www.youtube.com/

16:54
Teacher Delivers Remote Virtual Reality Math Lesson on Angles using Half Life: Alyx
/ 365 viewsReview of Angle Vocabulary for Homeschooling Week because I have to teach today, but Half Life Alyx just came out. Want to support my classroom? http://www.donorschoose.org/charlescoomber Twitter – @charlescoomber

02:41
SYMMETRY
/ 537 viewsSymmetry is one of five shorts featured in the film, "Mathematica Peep Shows." The collection was made by Charles and Ray Eames for the IBM Mathematica Exhibit which opened in 1961. It is about the mathematical ordering of form and the symmetrical propert

16:38
Superhero Triangles  Numberphile
/ 611 viewsHeronian triangles and other fascinating things, featuring Dr James Grime.Get your Superhero Triangle TShirt and other stuff: http://bit.ly/Super_TriMore links & stuff in full description below More videos with Dr Grime: http://bit.ly/grimevideosDr James

05:06
The Pizza Theorem
/ 573 viewsWatch 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
/ 455 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/TheTopologyofPacmanhttp://www.squaring.net/s

18:38
Mbius Bagels
/ 596 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
/ 627 viewsI 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
/ 679 viewsTrain 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
/ 513 viewsFun with toothpicks. Featuring Neil Sloane. More links & stuff in full description below ↓↓↓ Neil Sloane is the founder of the OnLine Encyclopedia of Integer Sequences: https://oeis.org Play with the toothpick simulator: http://oeis.org/A139250/a139250.a

07:26 Popular
Incredible Rolling Objects which aren't Spheres!
/ 1,499 viewsThese 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 Popular
Can you solve the unstoppable blob riddle?  Dan Finkel
/ 1,245 viewsA 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
/ 512 viewsWe 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
/ 522 viewsDr 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 Popular
Surface Area to Volume Ratios  Christmas Lectures with Philip Morrison
/ 820 viewsThe 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/christmaslectu

04:32 Popular
Can you solve the time travel riddle?  Dan Finkel
/ 753 viewsPractice more problemsolving 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 Popular
Can you solve the secret werewolf riddle?  Dan Finkel
/ 1,431 viewsPractice more problemsolving 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
/ 525 viewsUsing 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
/ 529 viewsDeane 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
/ 638 viewsIt'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
/ 517 viewsCutting 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
/ 676 viewsDeane 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 Popular
Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD
/ 774 viewsThanks 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?
/ 519 viewsRead the Nature paper for yourself: "Scutoids are a geometrical solution to threedimensional packing of epithelia" https://www.nature.com/articles/s41467018053761 Thanks to Laura and Clara for helping me with the video! You can download Laura's model

04:22 Popular
How to Determine the Area of a Triangle Based on Coordinates of Its Vertices & Determinants
/ 1,698 viewsHow 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 Popular
How to Solve for the Height of Cylinders
/ 768 viewsHow 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 Popular
How to Multiply to Get the Area of a Parallelogram
/ 1,512 viewsHow 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 Popular
Types of Angles, Figures & Shapes
/ 1,490 viewsTypes 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?
/ 692 viewsWhat 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"
/ 488 viewsThanks 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
5Sided Square  Numberphile
/ 615 viewsCheck 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 Popular
Can you solve the Mondrian squares riddle?  Gordon Hamilton
/ 740 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Dutch artist Piet Mondrian’s abstract, rectangular paintings inspired mathematicians to create a twofold 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
/ 515 viewsIn 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
/ 462 viewsWinfred 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
NonEuclidean Geometry of a Sphere  Christmas Lectures with Philip Morrison
/ 527 viewsAccording 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 nonEuclidean geometry applies. Watch the full lecture: http://www.rigb.org/christmaslectures/watch/1968/gulliv

03:24
Round Peg in a Square Hole  Numberphile
/ 595 viewsFeaturing 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

01:20
Proof Without Words: The Circle
/ 503 viewsProve 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
/ 579 viewsI 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 600Cell
/ 508 viewsMathematician/geometer Dugan Hammock of Quantum Gravity Research shows us a visualization of the 4dimensional 600Cell projected to 3D object (further projected, technically, to 2D on his computer screen.) The 600Cell is a 4dimensional shape made of 60

05:17 Popular
How many ways are there to prove the Pythagorean theorem?  Betty Fei
/ 1,530 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/howmanywaysaretheretoprovethepythagoreantheorembettyfei What do Euclid, 12yearold Einstein, and American President James Garfield have in c

04:17 Popular
How volume changes from changing dimensions
/ 794 viewsHow volume changes from changing dimensions

03:41
Example finding distance with Pythagorean theorem
/ 649 viewsExample finding distance with Pythagorean theorem

22:41
Calculating the optimal sphere packing density: with oranges
/ 660 viewsCheck 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/wpcontent/uploads/annalsv162n3p01.pdf The Kepler Conjecture on wiki

12:55 Popular
Math Antics  The Pythagorean Theorem
/ 2,249 viewsLearn 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
/ 573 viewsFeaturing 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 Popular
Pascal's Triangle  Numberphile
/ 1,472 viewsJust a few fun properties of Pascal's Triangle  discussed by Casandra Monroe, undergraduate math major at Princeton University. Filmed during the MSRIUP summer program. Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): htt

04:32 Popular
Math Word problems  Solving triangles
/ 1,290 viewsBecome 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 Popular
Area of a Triangle  Fun challenging math problem
/ 2,090 viewsCan 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

04:55 Popular
Solve the right triangle  Trigonometry Brain Teaser
/ 1,657 viewsA square is inside of a right triangle. The length of each side of the triangle is 345. 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 Popular
The Brachistochrone
/ 725 viewsBRAIN 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 Popular
How Giant Lava Caves on Earth May Help Us Survive on Mars  National Geographic
/ 875 viewsThe first humans to arrive on Mars will experience lifethreatening 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 Popular
Math Challenge  Shrinking Pool Problem
/ 1,177 viewsThink 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 Popular
Easy Puzzle  But can you solve it?
/ 1,405 viewsSolve 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

04:13 Popular
Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle
/ 880 viewsA 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 Popular
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer
/ 828 viewsStart 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 Popular
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"
/ 1,107 viewsThis problem was given to Primary 6 (age 1112) 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
SpaceFilling Curves  Numberphile
/ 594 viewsHenry Segerman shows us some 3Dprinted spacefilling 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 Popular
Aluminium  The Material That Changed The World
/ 1,023 viewsThanks 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 Popular
Can You Solve The Hardest Easy Geometry Problem?
/ 1,247 viewsIn 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
/ 1,899 viewsLearn 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 Popular
Proof  Sum of Measures of Angles in a Triangle are 180
/ 1,738 viewsProof that the sum of the measures of the angles in a triangle are 180

04:29
Mathematical Present Wrapping
/ 594 viewsMathematician 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
/ 600 viewsFinding radius and diameter from circumference

09:26
Informal Argument For The Area Of Circle Formula
/ 662 viewsInformal argument for the area of circle formula

08:41
Proving Radius Is Perpendicular To Tangent Line
/ 622 viewsProving radius is perpendicular to tangent line

03:56
Segments Tangent To Circle From Outside Point Congruent
/ 573 viewsSegments tangent to circle from outside point congruent

04:58 Popular
Example Showing Supplementary Oppositie Angles In Inscribed Quadrilateral
/ 720 viewsExample showing supplementary oppositie angles in inscribed quadrilateral

03:56 Popular
Proving The Opposite Angles Of Inscribed Quadrilateral Are Supplementary
/ 979 viewsProving the opposite angles of inscribed quadrilateral are supplementary

01:35
Seeing Circle Similarity Through Translation And Dilation
/ 561 viewsSeeing circle similarity through translation and dilation

05:49
Solving For Unknown Angle
/ 549 viewsSolving for unknown angle. One method using an inscribed angle intercepting a diameter of a circle.

06:35 Popular
Bisecting Yin And Yang  Brain Teaser
/ 954 viewsCan 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 

03:59 Popular
Volume Word Problems — Basic Example  Math  New SAT  Khan Academy
/ 1,009 viewsWatch Sal work through a basic Volume word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths1harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previous

05:09 Popular
Volume Word Problems — Harder Example  Math  New SAT  Khan Academy
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03:52
Right Triangle Word Problems — Basic Example  Math  New SAT  Khan Academy
/ 682 viewsWatch Sal work through a basic Right triangle word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths2harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

05:33
Right Triangle Word Problems — Harder Example  Math  New SAT  Khan Academy
/ 693 viewsWatch Sal work through a harder Right triangle word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths6easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the

03:52 Popular
Angles, Arc Lengths, And Trig Functions — Basic Example  Math  New SAT  Khan Academy
/ 861 viewsWatch Sal work through a basic Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths4harder?utm_source=YT&utm_medium=Desc&utm_campaig

03:45 Popular
Angles, Arc Lengths, And Trig Functions — Harder Example  Math  New SAT  Khan Academy
/ 1,004 viewsWatch Sal work through a harder Angles, arc lengths, and trig functions problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths5easier?utm_source=YT&utm_medium=Desc&utm_campai

04:28 Popular
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/ 1,341 viewsWatch Sal work through a basic Circle theorems problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths5harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev

04:10 Popular
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/ 1,470 viewsWatch Sal work through a harder Circle theorems problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths8easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre

04:19 Popular
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/ 1,566 viewsWatch Sal work through a basic Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths6harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse

03:18 Popular
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/ 1,156 viewsWatch Sal work through a harder Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths7easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Miss

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/ 907 viewsWatch Sal work through a basic Right triangle geometry problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths7harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed

03:43
Right Triangle Geometry — Harder Example  Math  New SAT  Khan Academy
/ 595 viewsWatch Sal work through a harder Right triangle geometry problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths4easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed

01:53 Popular
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/ 757 viewsWatch Sal work through a basic Circle equations problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths8harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre

02:49
Circle Equations — Harder Example  Math  New SAT  Khan Academy
/ 637 viewsWatch Sal work through a harder Circle equations problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths3easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pr

05:02 Popular
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/ 1,412 viewsLinear equation for file transfer Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/interpreting_linear_functions/e/interpretingfeaturesoflinearfunction

05:30 Popular
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/ 1,803 viewsLearn 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/twovarlinearequationsandintro

03:12 Popular
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/ 1,879 viewsGraphing equation for filling pool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/linearfunctionsmodeling/e/graphinglinearfunctionswordproblems?utm

01:07 Popular
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/ 1,069 viewsSal 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/algebrafunctions/functioninputsandoutputs/e/functions_matching_inputs_outputs?utm_so

01:49 Popular
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/ 1,783 viewsSal 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/algebrafunctions/functioninputsandoutputs/e/functions_matching_inp

05:09 Popular
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07:23 Popular
Introduction To Transformations  Transformations  Geometry  Khan Academy
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01:37 Popular
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01:25 Popular
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01:48 Popular
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01:32 Popular
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01:55 Popular
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/ 1,175 viewsPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeotranslations/e/translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org

02:46 Popular
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/ 1,685 viewsDefining rotation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeorotations/e/definingrotations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson

05:41 Popular
Points On Line Of Reflection  Transformations  Geometry  Khan Academy
/ 1,300 viewsPoints on line of reflection Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/e/definingreflections?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next

07:19 Popular
Reflecting Segments Over Line  Transformations  Geometry  Khan Academy
/ 961 viewsReflecting segments over line Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/e/reflections1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesso

02:28 Popular
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/ 1,040 viewsDrawing line of reflection Watch the next lesson: https://www.khanacademy.org/math/geometry/transformations/hsgeoreflections/v/determiningthelineofreflection?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www

10:32 Popular
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/ 857 viewsRotating about arbitrary point Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeorotations/e/rotations2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson:

08:13 Popular
Points After Rotation  Transformations  Geometry  Khan Academy
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