find the measure of the missing angle.\nanswer attempt 1 out of 2\na =

Explanation:

Step1: Recall angle - sum property

The two angles shown are complementary, and the sum of complementary angles is 90°.

Step2: Set up the equation

Let the missing angle be (a). We have (a + 60^{\circ}=90^{\circ}).

Step3: Solve for (a)

Subtract 60° from both sides of the equation: (a=90^{\circ}- 60^{\circ}).

Answer:

(30^{\circ})