# Triangle Sum Properties

- Author:
- Jill Alsman

Students will investigate the sum of the measure of the interior angles of triangles, look at a proof, as well as investigate the measure of an exterior angle of a triangle.

- Author:
- Jill Alsman

Students will investigate the sum of the measure of the interior angles of triangles, look at a proof, as well as investigate the measure of an exterior angle of a triangle.