Soccer Ball Theorem Proof

[l33tminion]

Here's the answer to that homework problem I mentioned earlier. To restate the problem:

A ball is sewn together from pentagonal and hexagonal pieces of material. Each edge of each polygon lines up exactly with an edge of another polygon. Three polygons meet at each corner of each polygon. Prove that the ball must contain exactly 12 pentagons.

Comments

[crazy_tory]

Neat, Sam. Nicely done.

[l33tminion]

Thankee. *bows*

<3

[_skye_]

Beautiful, l33t. Thank you.

[l33tminion]

I appreciate the appreciation. Yay math!