Question

what is the relationship between ∠m and ∠n? choose 1 answer: a vertical angles b complementary angles c supplementary angles

Explanation:

Vertical angles are opposite each other when two lines intersect. Complementary angles add up to 90 degrees and supplementary angles add up to 180 degrees. Here, ∠m and ∠n share a common - side and their non - common sides form a straight line, so they add up to 180 degrees.

Answer:

C. Supplementary angles