Analyze the biconditional statement below and complete the instructions that follow. Two angles are congruent if and only if they have the same measure.

Write a definition based on the biconditional.

A.
Two angles have the same measure.
B.
Two angles are congruent.
C.
Two angles are congruent if they have the same measure.
D.
If they have the same measure, then they are congruent.