Question

the measure of an angle is 172°. what is the measure of its supplementary angle?

Explanation:

Step1: Recall the definition of supplementary angles

Supplementary angles add up to \(180^{\circ}\). Let the supplementary angle be \(x\). Then \(172^{\circ}+x = 180^{\circ}\).

Step2: Solve for \(x\)

Subtract \(172^{\circ}\) from both sides of the equation: \(x=180^{\circ}- 172^{\circ}\).

Answer:

\(8\)