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Mathematics 17 Online
OpenStudy (anonymous):

The length of a rectangle is three times its width. If the area of the rectangle is 300cm^2 , find its perimeter.

OpenStudy (anonymous):

Solve for L and w: {L == 3 w, L w == 300} {w = 10, L = 30} p = 2*30 + 2*10 = 80

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