Find the area of the trapezoid 9 m 15m 20m i think you have to have three areas i'm not sure can you anybody show me how to do this and how you find out the area this show your work i will mark brainiest

The 9-m and 20-m sides are both perpendicular to the same segment, so they are parallel. They are the bases of the trapezoid.
The 15-m side that is perpendicular to the two bases is the height of the trapezoid.
The area of a trapezoid is
A = (B + b)h/2
where B and b are the lengths of the bases, and h is the height.

A = (20 m + 9 m) * (15 m)/2 = 217.5 m^2