math
posted by Millah .
Rose’s garden is in the shape of a trapezoid. If the height of the trapezoid is 16 m, one base is 20 m, and the area is 224 m2, find the length of the other base.
How do I set up this problem so I can solve it?
Thank you!

so, what is the function for the area of a trapezoid?

I'm still confused, what do you mean?

area=1/2*(base+ top)*height
solve for top.