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

5-99.

The angle at right measures

If the angle in part (a) measures

, what would be the measure of its supplementary angle? **Justify**your answer.

Supplementary angles are angles that sum to make a

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*