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Thewidth of rectangel is half of its length if the perimeter is 108cm find its dinension

Thewidth of rectangel is half of its length if the perimeter is 108cm find its dinension

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Guest [Entry]

"Width = 1/2 of Length

P = 2L + 2W
108 =2L + 2(L/2)
108 = 2L + L
108 = 3L
L = 36
W = 18

18 by 36 are the dimension of a rectangle"