Question

the measure of an angle is 162.8°. what is the measure of its supplementary

Explanation:

Step1: Recall supplementary angle sum

Supplementary angles sum to 180°.

Step2: Calculate the supplement

Let the supplement be $x$. Then $x + 162.8° = 180°$, so $x = 180° - 162.8° = 17.2°$.

Answer:

17.2°