Question

what is an angle that is supplementary to ∠4?

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180 degrees.

Step2: Identify adjacent angle to ∠4

From the figure, ∠5 is adjacent to ∠4 and they form a linear - pair. A linear - pair of angles is supplementary.

Answer:

∠5