Question

what is an angle that is supplementary to ∠ced?

Explanation:

Step1: Recall supplementary - angle definition

Two angles are supplementary if their sum is 180 degrees. Adjacent angles that form a straight - line are supplementary.

Step2: Identify the adjacent angle to ∠CED

∠BEC and ∠CED form a straight - line at point E. So, ∠BEC+∠CED = 180 degrees.

Answer:

∠BEC