Question

A trapezoid has an area of 21.2 square miles. One base is 4 miles long. The other base is 1.3 miles long. What is the height?

Answer 1

The height = 8 miles.

Explanation:

Area of a trapezoid = h(a + b)/2 where h=the height and a and b are the 2 bases.

So we have:

21.2 = h(4 + 1.3)/2

5.3 h / 2 = 21.2

5.3h = 42.4

h = 42.4 / 5.3

h = 8.