Visit http://ilectureonline.com for more math and science lectures!

In this video I will explain and illustrate the CONGRUENCE of alternate exterior angles.

To donate:
http://www.ilectureonline.com/donate
https://www.patreon.com/user?u=3236071

Next video in this series can be seen at:
https://youtu.be/KcRkSufu3sQ