3 years ago

In need of help for pentagon area

1 answer:

TEA [102]3 years ago

3 0

Find the area as iff it was a rectangle, then subtract the area of the triangle in the top left corner.

Area of rectangle = 20 x 18 = 360

Area of triangle = 1/2 x 4 x 3 = 6

Area of pentagon = 360 - 6 = 354 cm^2

See picture:

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