Question

the measure of an angle is 17°. what is the measure of its supplementary angle?

Explanation:

Step1: Recall supplementary - angle definition

Supplementary angles add up to 180°.

Step2: Calculate the supplementary angle

Let the given angle be \(a = 17^{\circ}\), and the supplementary angle be \(x\). Then \(x=180^{\circ}-a\). Substitute \(a = 17^{\circ}\) into the formula: \(x = 180 - 17\).
\(x=163^{\circ}\)

Answer:

163°