Interior Points and Rays of an Angle
Channel: Andrew Misseldine
Date: 2022-01-26

In this video, we state and prove a multi-part proposition about angles in ordered geometry and how certain points and rays interact with the interior and boundary of this angle. The notion of an opposite ray and open ray are introduced. 

This is part 12 (3/3) 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/1qLW9YWULX_5W7T8F3PJRgokZ9nfDHTHA/view

This lecture is loosely based upon Section 2.4 of Euclidean and Non-Euclidean Geometries by Greenberg. 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.