Question

A trapezoid has an area of 186 square inches. The base is 14, height is 12, what is the missing base?

Answer 1

Explanation:

The area formula for a trapezoid is

`A=(1)/(2)h(b_1+b_2)`

A is 186, h is 12, b1 is 14:

`186=(1)/(2)(12)(14+b)` and

186 = 6(14 + b) and

186 = 84 + 6b and

102 = 6b so

b = 17

The other base is 17