Question

which angle is supplementary to ∠2?

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180°.

Step2: Analyze the angles around the point

Looking at the figure, ∠2 and ∠5 form a linear - pair. A linear - pair of angles are adjacent angles that are supplementary. So, ∠2+∠5 = 180°.

Answer:

∠5