### Home > MC2 > Chapter 5 > Lesson 5.3.2 > Problem 5-99

5-99.

Supplementary angles are angles that sum to make a 180° angle.

Use the slider in the eTool below to estimate the degree measurements for parts (a) - (d).

Click the link at right for the full version of the eTool: MC2 5-99 HW eTool