Question

Find the value of x and y in the parallelogram below.
92
129
-x+4
y-3

Answer 1

In a parallelogram opposite angles are equal. So set the opposite pairs equal:

92 = −x + 4 and 129 = y − 3.

Solve each:
92 = −x + 4 → −x = 88 → x = −88.
129 = y − 3 → y = 129 + 3 = 132.

Answer: x = −88, y = 132.