Question

find the measure of the missing angle. find the measure of the missing angle.

Explanation:

Step1: Recall angle - sum property

The two angles are complementary, meaning their sum is 90°. Let the missing angle be \(a\). The equation is \(a + 39^{\circ}=90^{\circ}\).

Step2: Solve for \(a\)

We can find \(a\) by subtracting 39° from 90°. So, \(a=90^{\circ}- 39^{\circ}\).

Answer:

\(51^{\circ}\)