Question

In the diagram below, AB is parallel to CD. what is the value of x?

A. 30
B. 60
C. 150
D. 120

Answer 1

C. 150

Explanation:

The given angle and angle x are supplementary. This means that when added together they add to 180. So, to solve you can set up an algebraic equation like 180=x+30. Then, subtract 30 from both sides to get 150=x.