Numberphile

Hello there.

This is Numberphile. We mainly post videos about mathematics and just numbers in general.

All in Triangles

Perfect Goal Kicking Angle

Mar 16

Mar 16 Perfect Goal Kicking Angle

Ben Sparks, Geometry, Triangles, Sport

Triangle Subdivision

Feb 9

Feb 9 Triangle Subdivision

Triangles, Volkmar Welker

3 Ways to Draw Squares Inside Triangles

Mar 22

Mar 22 3 Ways to Draw Squares Inside Triangles

Calvin Lin, Triangles, Squares

Pentagons and the Golden Ratio

Feb 9

Feb 9 Pentagons and the Golden Ratio

Zvezdelina Stankova, Circles, Triangles, Golden Ratio

Ptolemy's Theorem

Feb 9

Feb 9 Ptolemy's Theorem

Zvezdelina Stankova, Circles, Triangles

Superhero Triangles

Jan 28

Jan 28 Superhero Triangles

James Grime, Triangles

Too Many Triangles

Nov 28

Nov 28 Too Many Triangles

Henry Segerman, Triangles

Triangles have a Magic Highway

Feb 1

Feb 1 Triangles have a Magic Highway

Zvezdelina Stankova, Triangles

All Triangles are Equilateral

Nov 5

Nov 5 All Triangles are Equilateral

Carlo Séquin, Triangles