Скачать или смотреть The Angle Sum Triangle Theorem

In this video, we state and prove the theorem that tells us that the angle sum of a triangle always adds to 180 degrees. We use this to compute the unknown angle of a triangle.

This is lecture 3 (part 2/3) of the lecture series offered by Dr. Andrew Misseldine for the course Math 1060 - Trigonometry 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/1XMiQ...

This lecture is based upon general college trigonometry curriculum and not based upon an individual textbook. With that said, this lecture series is influenced by many great college trigonometry textbook on the market, namely Lial's, Sullivan's, Stewart's, OpenStax's, McKeague's, Stitz-Zeager's, and many others. 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.