Triangle Sum Theorem
- Author:
- Judith Hilinski
- Topic:
- Triangles
Interior Angles: The angles inside of a triangle
Vertex: The point where the sides of a triangle meet
Introduction: Triangle Sum Theorem
Video check
For any triangle, no matter how it is classified, whether it's a right triangle or an equilateral triangle or an isosceles triangle, any triangle of any sort, its interior angles will always add up to _____ degrees.
If we know the measure of two of the interior angles of any triangle, we can find the measure of the third by __________ the ________ of the two known interior angles and subtracting the ____ from _______ degrees.