A trapezoid has an area of 18m square and parallel sides that measure 4m and 2m. Wat is the height of the trapezoid?

1 Answer
Nov 26, 2015

The height of the trapezoid is 6 "m"6m.

Explanation:

Let's call the parallel sides of your trapezoid aa and bb and let's call the height of the trapezoid hh.

The formula for the area of the trapezoid is

A = (a+b)/2 * hA=a+b2h

In your case, you know AA, aa and bb and you would like to compute hh, so plug the numbers into the equation and solve it for hh:

18 "m"^2 = (4 "m" + 2 "m")/ 2 * h18m2=4m+2m2h

<=> 18 "m"^2 = 3 "m" * h18m2=3mh

<=> h = 6 "m"h=6m