Geometry

03:24
Round Peg in a Square Hole  Numberphile
/ 27 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

01:38
How to Turn a Sphere Inside Out
/ 41 viewsThis video describes a way to invert a sphere. Simply fascinating to watch.

06:39
Pythagoras Theorem Explained  Mathemagic with Bawa
/ 34 viewshttp://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
/ 22 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
/ 42 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
/ 40 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
How many ways are there to prove the Pythagorean theorem?  Betty Fei
/ 73 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
How volume changes from changing dimensions
/ 78 viewsHow volume changes from changing dimensions

03:41
Example finding distance with Pythagorean theorem
/ 72 viewsExample finding distance with Pythagorean theorem

22:41
Calculating the optimal sphere packing density: with oranges
/ 77 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
Math Antics  The Pythagorean Theorem
/ 166 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
/ 95 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
Pascal's Triangle  Numberphile
/ 81 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
Math Word problems  Solving triangles
/ 120 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
Area of a Triangle  Fun challenging math problem
/ 189 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

03:41
Polygons Song For Kids Rap Video: Geometry Quadrilaterals Hexagons etc.
/ 174 viewsFull 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
/ 189 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
The Brachistochrone
/ 91 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
How Giant Lava Caves on Earth May Help Us Survive on Mars  National Geographic
/ 107 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
Math Challenge  Shrinking Pool Problem
/ 165 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
Easy Puzzle  But can you solve it?
/ 109 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

31:51
Geometry: An Interactive Journey to Mastery  The Great Courses
/ 102 viewshttps://www.thegreatcoursesplus.com/geometryaninteractivejourneytomastery?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
/ 121 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
Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer
/ 139 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
Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"
/ 237 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
/ 115 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
Aluminium  The Material That Changed The World
/ 100 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
Can You Solve The Hardest Easy Geometry Problem?
/ 196 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
Math Antics  Volume
/ 323 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
Proof  Sum of Measures of Angles in a Triangle are 180
/ 126 viewsProof that the sum of the measures of the angles in a triangle are 180

04:29
Mathematical Present Wrapping
/ 153 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
/ 137 viewsFinding radius and diameter from circumference

09:26
Informal Argument For The Area Of Circle Formula
/ 115 viewsInformal argument for the area of circle formula

08:41
Proving Radius Is Perpendicular To Tangent Line
/ 116 viewsProving radius is perpendicular to tangent line

03:56
Segments Tangent To Circle From Outside Point Congruent
/ 123 viewsSegments tangent to circle from outside point congruent

04:58
Example Showing Supplementary Oppositie Angles In Inscribed Quadrilateral
/ 139 viewsExample showing supplementary oppositie angles in inscribed quadrilateral

03:56
Proving The Opposite Angles Of Inscribed Quadrilateral Are Supplementary
/ 152 viewsProving the opposite angles of inscribed quadrilateral are supplementary

01:35
Seeing Circle Similarity Through Translation And Dilation
/ 118 viewsSeeing circle similarity through translation and dilation

05:49
Solving For Unknown Angle
/ 109 viewsSolving for unknown angle. One method using an inscribed angle intercepting a diameter of a circle.

06:35
Bisecting Yin And Yang  Brain Teaser
/ 149 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 

02:18
The Volume Song For Kids: Online Education Rap, Pop & HipHop
/ 169 viewsWorksheets, 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
/ 227 viewsGet the Companion Worksheet Set and other VideoLinked 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
/ 268 viewsWorksheets, 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
/ 288 viewsWorksheets, 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
/ 228 viewsGet the Companion Worksheet Set and other VideoLinked 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 3D shapes through e

01:56
Types Of Triangles Song  Online Education Songs For Kids
/ 195 viewsWorksheets, 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
/ 130 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
Volume Word Problems — Harder Example  Math  New SAT  Khan Academy
/ 113 viewsWatch Sal work through a harder Volume word problem. Watch the next lesson: https://www.khanacademy.org/testprep/newsat/newsatmath/newsatadditionaltopicsmath/v/satmaths2easier?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
/ 111 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
/ 135 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
Angles, Arc Lengths, And Trig Functions — Basic Example  Math  New SAT  Khan Academy
/ 123 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
Angles, Arc Lengths, And Trig Functions — Harder Example  Math  New SAT  Khan Academy
/ 147 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
Circle Theorems — Basic Example  Math  New SAT  Khan Academy
/ 146 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
Circle Theorems — Harder Example  Math  New SAT  Khan Academy
/ 170 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
Congruence And Similarity — Basic Example  Math  New SAT  Khan Academy
/ 123 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
Congruence And Similarity — Harder Example  Math  New SAT  Khan Academy
/ 125 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

08:17
Right Triangle Geometry — Basic Example  Math  New SAT  Khan Academy
/ 127 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
/ 103 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
Circle Equations — Basic Example  Math  New SAT  Khan Academy
/ 134 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
/ 126 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
Positive And Negative Slope  Algebra I  Khan Academy
/ 141 viewsPositive and negative slope Watch the next lesson: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/slope/v/similartrianglestoprovethattheslopeisconstantforaline?utm_source=YT&utm_medium=Desc&utm_campaign

02:34
Converting From Standard Form To Slopeintercept Form  Algebra I  Khan Academy
/ 165 viewsStandard form to slopeintercept form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/standardform/e/slopefromanequationinstandardform?utm_source=Y

02:35
Interpreting Linear Formulas Example 2  Algebra I  Khan Academy
/ 102 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
Graphing Linear Functions Example 1  Algebra I  Khan Academy
/ 114 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
Graphing Linear Functions Example 2  Algebra I  Khan Academy
/ 127 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
How To Match Function Input To Output Given The Graph (example)  Algebra I  Khan Academy
/ 112 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
How To Find Two Function Inputs With The Same Output Given Graph (example)  Khan Academy
/ 134 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
Converting From Slopeintercept To Standard Form  Algebra I  Khan Academy
/ 140 viewsConverting from slopeintercept to standard form Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/twovarlinearequationsandintrotofunctions/standardform/e/converting_between_slope_intercept_and_st

07:23
Introduction To Transformations  Transformations  Geometry  Khan Academy
/ 126 viewsIntroduction to transformations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingtranslationsonthecoordinateplane?utm_source=YT&utm_medium=De

01:37
Translation Example  Transformations  Geometry  Khan Academy
/ 122 viewsTranslation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingtranslationsonthecoordinateplane?utm_source=YT&utm_medium=Desc&utm_campa

01:25
Using Rotation Widget  Transformations  Geometry  Khan Academy
/ 148 viewsUsing rotation widget Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingrotationsonthecoordinateplane?utm_source=YT&utm_medium=Desc&utm_campai

01:48
Using Reflection Tool  Transformations  Geometry  Khan Academy
/ 150 viewsUsing reflection tool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigidtransformationsintro/e/performingreflectionsonthecoordinateplane?utm_source=YT&utm_medium=Desc&utm_camp

01:32
Formal Translation Tool Example  Transformations  Geometry  Khan Academy
/ 125 viewsFormal translation tool example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeotranslations/e/definingtranslations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the

01:55
Drawing Image Of Translation  Transformations  Geometry  Khan Academy
/ 136 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
Defining Rotation Example  Transformations  Geometry  Khan Academy
/ 120 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
Points On Line Of Reflection  Transformations  Geometry  Khan Academy
/ 124 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
Reflecting Segments Over Line  Transformations  Geometry  Khan Academy
/ 117 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
Drawing Line Of Reflection  Transformations  Geometry  Khan Academy
/ 133 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
Rotating About Arbitrary Point  Transformations  Geometry  Khan Academy
/ 109 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
Points After Rotation  Transformations  Geometry  Khan Academy
/ 105 viewsPoints after rotation Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hsgeorotations/e/rotations1?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
/ 201 viewsView full lesson: http://ed.ted.com/lessons/themathematicalsecretsofpascalstrianglewajdimohamedratemi 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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03:47
Example Finding Area With Fractional Sides
/ 148 viewsExample finding area with fractional sides

07:02
Intuition For Area With Fractional Side Lengths
/ 187 viewsIntuition for area with fractional side lengths
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02:57
Intuition For Area Of A Parallelogram
/ 157 viewsIntuition for area of a parallelogram
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03:51
Dimensions Of Rectangle From Coordinates Example
/ 145 viewsDimensions of rectangle from coordinates example

02:41
Finding Coordinates Of Missing Vertex Example
/ 210 viewsFinding coordinates of missing vertex example

02:08
Area Of Parallelogram On Coordinate Plane
/ 134 viewsArea of parallelogram on coordinate plane

57:34
Topology, Geometry And Life In Three Dimensions
/ 151 viewsIf you imagine a three dimensional maze from which there is no escape, how can you map it? Is there a way to describe what all possible mazes look like, and how do mathematicians set about investigating them? Subscribe for regular science videos: http://b

07:32
Examples Interpreting Graphs Of Proportional Relationships
/ 198 viewsExamples interpreting graphs of proportional relationships

05:56
Intervals When Function Is Increasing, Decreasing, Postive Or Negative
/ 215 viewsIntervals when function is increasing, decreasing, postive or negative

07:43
How To Trisect An Angle With Origami  Numberphile
/ 223 viewsZsuzsanna 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

16:51
Euclid's Big Problem  Numberphile
/ 231 viewsTrisecting 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://

02:59
Arc Length As Fraction Of Circumference
/ 284 viewsArc length as fraction of circumference More free lessons at: http://www.khanacademy.org/video?v=XFI7GK4Nvs

05:35
Another Example Using Compass And Straightedge For Tangent Line
/ 285 viewsAnother example using compass and straightedge for tangent line

05:50
Constructing A Tangent Line Using Compass And Straightedge
/ 191 viewsConstructing a tangent line using compass and straightedge

07:56
Math Antics  Circles, Circumference And Area
/ 406 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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07:58
Math Antics  Circles, What Is PI?
/ 328 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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10:27 Popular
Math Antics  Area
/ 1,166 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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07:29
Math Antics  Perimeter
/ 288 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

09:50
Math Antics  Quadrilaterals
/ 295 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

07:40
Math Antics  Triangles
/ 355 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

07:27
Math Antics  Polygons
/ 307 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

09:17
Math Antics  Angles&Degrees
/ 223 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

07:46
Math Antics  Angle Basics
/ 234 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

07:54
Math Antics  Points, Lines,&Planes
/ 219 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

08:50
Visual Pythagorean Theorem Proof
/ 198 viewsVisual Pythagorean Theorem Proof  some basic geometry required

06:41
Midpoint Formula
/ 176 viewsMidpoint Formula More free lessons at: http://www.khanacademy.org/video?v=Ez_RwV9WVo

13:03
Pythagorean Theorem
/ 198 viewsPythagorean Theorem More free lessons at: http://www.khanacademy.org/video?v=AEIzy1kNRqo

03:00
Pythagorean Theorem 3
/ 172 viewsU07_L2_T1_we3 Pythagorean Theorem 3 More free lessons at: http://www.khanacademy.org/video?v=T0IOrRETWhI Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

04:17
Pythagorean Theorem 2
/ 199 viewsU07_L2_T1_we2 Pythagorean Theorem 2 More free lessons at: http://www.khanacademy.org/video?v=O64YFlX1_aI Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

04:32
Pythagorean Theorem 1
/ 199 viewsU07_L2_T1_we1 Pythagorean Theorem 1 More free lessons at: http://www.khanacademy.org/video?v=JVrkLIcA2qw Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:29
Perpendicular Lines
/ 200 viewsU04_L2_T2_we1 : Perpendicular Lines More free lessons at: http://www.khanacademy.org/video?v=0671cRNjeKI Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

02:43
Parallel lines 3
/ 156 viewsU04_L2_T1_we3 : Parallel lines 3 More free lessons at: http://www.khanacademy.org/video?v=y5yNi08cr6I Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:03
Parallel Lines 2
/ 161 viewsU04_L2_T1_we2 : Parallel Lines 2 More free lessons at: http://www.khanacademy.org/video?v=lOWXZFP8Vuc Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:49
Parallel Lines
/ 186 viewsU04_L2_T1_we1 : Parallel Lines More free lessons at: http://www.khanacademy.org/video?v=TaCweuimis Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

07:57
Pointslope and standard form
/ 165 viewsU04_L1_T4_we2 : Pointslope and standard form More free lessons at: http://www.khanacademy.org/video?v=6Fu2T_RSGM Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

05:07
Converting to slopeintercept form
/ 195 viewsU04_L1_T4_we1 : Converting to slopeintercept form More free lessons at: http://www.khanacademy.org/video?v=V6Xynlqc_tc Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:02
Graphing a line in slope intercept form
/ 168 viewsU04_L1_T3_we1 : Graphing a line in slope intercept form More free lessons at: http://www.khanacademy.org/video?v=uk7gS3cZVp4 Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:25
X and Y intercepts 2
/ 175 viewsU04_L1_T2_we2 : X and Y intercepts 2 More free lessons at: http://www.khanacademy.org/video?v=405boztgZig Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

04:08
X and Y intercepts
/ 181 viewsU04_L1_T2_we1 : X and Y intercepts More free lessons at: http://www.khanacademy.org/video?v=xGmef7lFc5w Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

04:03
Slope Example
/ 177 viewsU04_L1_T1_we2 : Slope Example More free lessons at: http://www.khanacademy.org/video?v=jTCZfMMcHBo Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

04:40
Slope of a line
/ 168 viewsU04_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

02:35
Volume of a Sphere
/ 195 viewsu07_l3_t1_we2 Volume of a Sphere More free lessons at: http://www.khanacademy.org/video?v=IelS2vg7JO8 Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:03
Perimeter and Area of a NonStandard Polygon
/ 252 viewsu07_l2_t2_we3 Perimeter and Area of a NonStandard Polygon More free lessons at: http://www.khanacademy.org/video?v=7S1MLJOG5A Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

01:20
Perimeter of a Polygon
/ 166 viewsu07_l2_t2_we1 Perimeter of a Polygon More free lessons at: http://www.khanacademy.org/video?v=5ZCKr4wTQvI Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

01:42
Finding Missing Angles
/ 193 viewsu07_l1_t2_we3 Finding Missing Angles Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

02:36
Identifying Complementary and Supplementary Angles
/ 179 viewsu07_l1_t2_we2 Identifying Complementary and Supplementary Angles Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:35
Identifying Parallel and Perpendicular Lines
/ 337 viewsu07_l1_t2_we1 Identifying Parallel and Perpendicular Lines More free lessons at: http://www.khanacademy.org/video?v=aq_XL6FrmGs Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

06:35
Acute Obtuse and Right Angles
/ 217 viewsu07_l1_t1_we2 Acute Obtuse and Right Angles Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

05:41
Identifying Rays
/ 158 viewsu07_l1_t1_we1 Identifying Rays More free lessons at: http://www.khanacademy.org/video?v=w9jEq6dmqPg Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

06:12
Area and Perimeter of Composite Figures
/ 234 viewsu07_l2_t3_we4 Area and Perimeter of Composite Figures

02:01
Parts of a Circle
/ 194 viewsu07_l2_t3_we1 Parts of a Circle More free lessons at: http://www.khanacademy.org/video?v=04N79tItPEA Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

05:07
Quadrilateral Properties
/ 198 viewsu07_l2_t1_we1 Quadrilateral Properties More free lessons at: http://www.khanacademy.org/video?v=5CeBlu260Rw Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

05:34
Application of Similar Triangles
/ 216 viewsu07_l1_t3_we5 Application of Similar Triangles Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:23
Missing Measurements for Similar Triangles
/ 171 viewsu07_l1_t3_we4 Missing Measurements for Similar Triangles

03:07
Similar Triangles Corresponding Sides and Angles
/ 198 viewsu07_l1_t3_we3 Similar Triangles Corresponding Sides and Angles

03:53
Congruent and Similar Triangles
/ 213 viewsu07_l1_t3_we2 Congruent and Similar Triangles Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

14:45
Distance Between Planes
/ 199 views2010 IIT JEE Paper 1 Problem 51 Distance Between Planes More free lessons at: http://www.khanacademy.org/video?v=v8plb6V8BQo

12:12
Point distance to plane
/ 173 viewsDistance between a point and a plane in three dimensions More free lessons at: http://www.khanacademy.org/video?v=7rIFO8hct9g

09:58
Normal vector from plane equation
/ 188 viewsFiguring out a normal vector to a plane from its equation More free lessons at: http://www.khanacademy.org/video?v=gw4wltP5tY

12:17
IIT JEE Circle Hyperbola Common Tangent Part 5
/ 282 views2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 5 More free lessons at: http://www.khanacademy.org/video?v=rPoqpQcgNv4

10:36
IIT JEE Circle Hyperbola Common Tangent Part 4
/ 218 views2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 4 More free lessons at: http://www.khanacademy.org/video?v=eGo8C2Jshzs

08:55
IIT JEE Circle Hyperbola Common Tangent Part 3
/ 217 views2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 3 More free lessons at: http://www.khanacademy.org/video?v=RomnHMWSLoE

10:45
IIT JEE Circle Hyperbola Common Tangent Part 2
/ 240 views2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 2 More free lessons at: http://www.khanacademy.org/video?v=0imeUgSxR10

06:16
IIT JEE Circle Hyperbola Common Tangent Part 1
/ 234 views2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tan More free lessons at: http://www.khanacademy.org/video?v=MhLfun2Vask

12:44
IIT JEE Circle Hyperbola Intersection
/ 216 views2010 IIT JEE Paper 1 Problem 46 Circle Hyperbola Intersection More free lessons at: http://www.khanacademy.org/video?v=6g3DPg2HqGw

08:05
IIT JEE Perpendicular Plane (part 2)
/ 170 views2010 IIT JEE Paper 1 #30 normal vector and planes (Part 2) More free lessons at: http://www.khanacademy.org/video?v=66pQLOGhk

10:26
IIT JEE Perpendicular Planes (Part 1)
/ 207 views2010 IIT JEE Paper 1 #30 normal vector and planes (Part 1) More free lessons at: http://www.khanacademy.org/video?v=2u535HVJ_o

18:18
2003 AIME II Problem 14
/ 189 viewsTrigonometry and geometry to find the area of an equilateral (but not regular) hexagon More free lessons at: http://www.khanacademy.org/video?v=EcBKdC8vOo

16:36
2003 AIME II Problem 11.avi
/ 175 viewsA little trigonometry to figure out the area of a triangle More free lessons at: http://www.khanacademy.org/video?v=smtrrefmC40

16:13
2003 AIME II Problem 13
/ 166 viewsProbability of moving to a vertex More free lessons at: http://www.khanacademy.org/video?v=vKMNRcctwL4

09:06
Area Circumradius Formula Proof
/ 178 viewsProof of the formula relating the area of a triangle to its circumradius More free lessons at: http://www.khanacademy.org/video?v=x_aax6LSRtE

17:42
2003 AIME II Problem 6
/ 186 viewsFinding area of a skewed star More free lessons at: http://www.khanacademy.org/video?v=l9j26EOvTYc

02:27
2003 AIME II Problem 5 Minor Correction
/ 187 views2003 AIME II Problem 5 Minor Correction More free lessons at: http://www.khanacademy.org/video?v=yXg5CYuCcU4

08:14
2003 AIME II Problem 5
/ 185 viewsVolume of a wedge cut from a cylindrical log More free lessons at: http://www.khanacademy.org/video?v=EzE53aPGbrQ

14:15
2003 AIME II Problem 4 (part 1)
/ 162 views2003 AIME II Problem 4 (part 1) More free lessons at: http://www.khanacademy.org/video?v=gXnHodHNusg

02:21
u08_l1_t2_we2 Reading Line Graphs
/ 177 viewsu08_l1_t2_we2 Reading Line Graphs More free lessons at: http://www.khanacademy.org/video?v=36v2EXZRzUE Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

03:09
Reading Pie Graphs (Circle Graphs)
/ 161 viewsu08_l1_t2_we1 Reading Pie Graphs (Circle Graphs) More free lessons at: http://www.khanacademy.org/video?v=4JqH55rLGKY Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

02:59
Reading Bar Graphs
/ 185 viewsu08_l1_t1_we2 Reading Bar Graphs More free lessons at: http://www.khanacademy.org/video?v=kiQ6MUQZHSs Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

02:21
Reading Pictographs
/ 177 viewsu08_l1_t1_we1 Reading Pictographs More free lessons at: http://www.khanacademy.org/video?v=qrVvpYt3Vl0 Content provided by TheNROCproject.org  (c) Monterey Institute for Technology and Education

16:22
Tau versus Pi
/ 157 viewsWhy Tau might be a better number to look at than Pi More free lessons at: http://www.khanacademy.org/video?v=1jDDfkKKgmc