Question

If the quadrilateral below is a trapezoid, solve for x.
X =
PLEASE HELP

Answer 1

x = 7

Explanation:

In a trapezoid

each lower base angle is supplementary to the upper base angle on the same side , then

∠ S + ∠ V = 180

8x - 21 + 145 = 180

8x + 124 = 180 ( subtract 124 from both sides )

8x = 56 ( divide both sides by 8 )

x = 7