Question

A trapezoid has an area of 166.5 in.², a height of 9 in., and one base measuring 15 in. What is the length of the other base? (1 point)3.5 in.

7 in.
18.5 in.
22 in.

Answer 1

Answer: 22 in.

Explanation:

Answer 2

The correct answer for this question is "22 inches."

The formula of finding the area of a trapezoid is:
A = (b1 + b2) / 2 * h

Given the area of 166.5 in^2, height of 9 in, b1 of 15
So,
166.5 = (15 + b2) / 2 * 9
333 = 9 (15 + b2)
37 = 15 + b2
b2 = 22

So the length of the other base is 22 inches.