Angle V and angle W share a side and the sum of their measures is 180°. What do you know about these angles? A. They are complementary angles. B. They are congruent angles. C. They are vertical angles. D. They are supplementary angles.​
i know this because the definition of a supplementary angle is a sum of two angles witch equales 180     (either of two angles whose sum is 180°.)       hope this helps :) wyatt
