the fence makes the shape of a rectangle. The length is twice as long as the width. The area of the rectangle is 72 square meters. How much fence must I buy to put a fence around a dog house.

Area = 72

Lentgh =2x

Width =x

2x^2 =72

x^2 =36

x= 6

2x= 12

Perimeter =2*(12+6) = 36 meters

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