Philip P. answered • 06/20/18

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Let x = the length and x-4 = the width:

Area = (length)(width)

96 = x(x-4)

96 = x

^{2}- 4x0 = x

^{2}- 4x - 960 = (x-12)(x+8)

x = 12 and -8. Since you can't have a negative length, x = 12.

Perimeter = 2(length) + 2(width)

Perimeter = 2x + 2(x-4)

Perimeter = 2(12) + 2(12-4)

Perimeter = 40

Karen J.

06/20/18