In the triangle above, points A, B, and C are vertices. Drag any vertex and notice how the angle and side measures change.
Regardless of the movement of the vertices, what is the total interior angle measure of the triangle? [br]([math]m\angle A+m\angle B+m\angle C[/math])
Write a sentence in your notes to help you remember what you learned (or to support what you already knew) about the total interior angle measure of any triangle.