Chapter 2: An ancient theorem and a modern question
Description goes here.
Resources
Interactive
Pythagorean Theorem Proof by Community Contributor @TimAlex
Videos
Playing Sports in Hyperbolic Space
Books
The Four Pillars of Geometry by John Stillwell
Linear Algebra Done Right by Sheldon Axler
See More
 This article is a stub. You can help us by editing this page and expanding it.