Question

Find the value of x. Please try to give an explanation on how to do it as well. :)

Answer 1

A

Explanation:

the figure shown is a trapezoid

In a trapezoid

Each lower base angle is supplementary ( sum to 180° ) to the upper base angle on the same side, then

3x + 90 = 180 ( subtract 90 from both sides )

3x = 90 ( divide both sides by 3 )

x = 30