Use the following information to answer questions 38-40.

Parallelogram WXYZ is shown in the standard (x, y) coordinate plane below. The coordinates for 3 of its vertices are W(0, 0), X(a, b), and Z(c, 0).

39. The measure of ∠Y is 50°. What is the measure of the angle between WX and the y-axis?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

Because the opposite side of the parallelogram is parallel, so ∠XYZ=∠YZX=∠XWZ=50°, so ∠YWZ=90°-∠XWZ=40°, so choose B