The length of a rectangle is 4 m longer than it’s width. If the perimeter of the rectangle is 64 m, find it’s length and width.

Answer 1

L=4+W

P=64 = 2L + 2W

64= 2(4+W) + 2W = 8 +2W+2W = 8 + 4W

64 = 8 + 4W Divide by 4

16 = 2 + W

W = 16-2 = 14

L = 4+W = 4+14 = 18

Answer 2

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