Question

what is the value of y in the parallelogram below? a. 24 b. 36 c. 105 d. 69

Explanation:

Step1: Recall property of parallelogram

Adjacent angles of a parallelogram are supplementary, so $3y + 108=180$.

Step2: Solve for $y$

Subtract 108 from both sides: $3y=180 - 108$. So $3y = 72$. Then divide both sides by 3: $y=\frac{72}{3}=24$.

Answer:

A. 24