Sum of Interior Angles of a Triangle
Channel: North Carolina School of Science and Mathematics
Date: 2016-04-28

A demonstration showing that the sum of the interior angles of a triangle is 180 degrees.

Go here for guiding questions, notes for teachers, and example problems that you can try: https://ncssm.instructure.com/courses/789/pages/7-dot-8-completing-the-square-and-the-quadratic-formula

Find more resources here: http://bit.ly/math1resources

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Please attribute this work as being created by the North Carolina School of Science and Mathematics. This work is licensed under creative commons CC-BY-NC-SA http://creativecommons.org/licenses/by-nc-sa/4.0/

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