The Saccheri-Legendre Theorem
Channel: Andrew Misseldine
Date: 22/02/2022

In this video, we present and proof the Saccheri-Legendre Theorem of neutral geometry, which states that the angle sum of a neutral triangle never exceeds 180 degrees.

This is part 23 (1/1) of the lecture series offered by Dr. Andrew Misseldine for the course Math 3130 - Modern Geometries at Southern Utah University. A transcript of this lecture can be found at Dr. Misseldine's website or through his Google Drive at: 
https://drive.google.com/file/d/1s5sRrxuy8w8wh4UgY5DFOrgMgN2J7fCt/view

This lecture is loosely based upon Section 3.5 of Roads to Geometry by Wallace and West. Please post any questions you might have below in the comment field and Dr. Misseldine (or other commenters) can answer them for you. Please also subscribe for further updates.