Question

which angle is supplementary to ∠afb?

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180 degrees. In a linear - pair of angles, the two angles are supplementary.

Step2: Identify linear - pair with ∠AFB

∠AFB and ∠BFE form a linear pair. Since they form a straight line (AE is a straight line), ∠AFB+∠BFE = 180 degrees.

Answer:

∠BFE