Question

what is an angle that is supplementary to ∠fdg?

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180 degrees.

Step2: Identify adjacent angle to ∠FDG

Adjacent to ∠FDG is ∠GDI. Since ∠FDG and ∠GDI form a straight - line (a linear pair), the sum of ∠FDG and ∠GDI is 180 degrees.

Answer:

∠GDI