Question

what is an angle that is complementary to ∠5?

Explanation:

Step1: Recall complementary - angle definition

Two angles are complementary if their sum is 90 degrees.

Step2: Identify relevant angle

From the figure, we can see that ∠1 is a right - angle (90 degrees), and ∠5+∠6 = 90 degrees.

Answer:

∠6