Question

A trapezoid with a height of 8 feet and one base measuring 11 feet has an area of 112 ft.² find the length of the other base

Answer 1

b2=17ft

Explanation:

112=1/2(11+b)(8)

112/8= 14

14•2=28

11+b=28

28-11=17

17=b

Answer 2

17

Explanation:

The equation of a trapezoid is (a + b)/2 * h. So let's reverse the equation and divide the area by the height, 112/8 = 14. Now we should multiply it by 2, so we can get what a + b equaled. 28 = 11 + b

b = 17