Question

What is the value of y in the parallelogram below?

Answer 1

Answer:34

Explanation:

Answer 2

Adjacent angles of a parallelogram are supplementary, so you have

... 78° + 3y° = 180°

... 3y = 102 . . . . . . . subtract 78

... y = 34 . . . . . . . . divide by 3

The appropriate choice is

... C. 34