Question

Need help with geometry question finding value of x in isosceles trapezoid

Answer 1

In any isosceles trapezoid, the base angles have the same measure. So, we have

$5x-20=3x+37$

Subtract $3x$ from both sides:

$2x-20=37$

Add 20 to both sides:

$2x=57$

Divide both sides by 2:

$x=28.5$