Question

angles 1 and 2 are supplementary. which equation represents the relationship between their measures? o m∠1 + m∠2 = 90° o m∠1 + m∠2 = 100° o m∠1 + m∠2 = 180° o m∠1 + m∠2 = 200°

Explanation:

Step1: Recall supplementary - angle definition

Supplementary angles add up to 180 degrees.

Answer:

C. $m\angle1 + m\angle2=180^{\circ}$