PLEASE HELP! NEED HELP WITH GEOMETRY!

Question

Use a composite figure to estimate the area of the figure. The grid has squares with side lengths of 1 cm.

Answer 1

You could make a series of shapes like this:

The areas would be like this:

Red Rectangle: L = 4, W = 3, A = 12

Blue Rectangle: L = 2, W = 1, A = 2

Violet Rectangle: L = 1, W = 0.8, A = 0.8

Dark Violet Trapezoid: B1 = 3, B2 = 1.5, H = 1, A = 2.25

Orange Trapezoid: B1 = 3, B2 = 1.6, H = 1.4, A = 3.22

Green Trapezoid: B1 = 1, B2 = 0.5, H = 1, A = 0.75

Total = 12 + 2 + 0.8 + 2.25 + 3.22 + 0.75 = 21.02 or about 21