Question

which angle is complementary to ∠bfc?

Explanation:

Step1: Recall complementary - angle definition

Two angles are complementary if their sum is 90 degrees.

Step2: Analyze the given figure

In the figure, assume the right - angle formed at point F. If we consider the right - angle as composed of two non - overlapping angles, and one of them is ∠BFC, the other angle that makes up the 90 - degree angle with ∠BFC is ∠CFD.

Answer:

∠CFD