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In need of help for pentagon area
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In need of help for pentagon area

In need of help for pentagon area-example-1
User Daniel Aranda
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1 Answer

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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:

In need of help for pentagon area-example-1
User Pavel Kulikov
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