Question

Mrs. Miller has a trapezoid shaped
poster. Its bases are 18 inches and
10 inches and the height is 7 inches.
How many square inches would
she need to cover the poster with
paint?

Answer 1

Formula for area of a trapezoid:

Area = a+b/2 x h, where a and b are the two bases.

Area = (18 + 10)/2 x 7

Area = 28/2 x 7 = 14 x 7 = 98 square inches.