Asked by help

The width of a rectangle is one half its length. The perimeter of the rectangle is 54 cm. What are the width and length of the rectangle?
Answered by Amy
w= 1/2(L)

perimeter rectangle = w + w + L + L = 2w + 2L

54 = 2w + 2L

54 = 2 (1/2)(L) + 2L

54 = 3L

L = 18 cm

w= 1/2 (L) = 1/2(18) = 9 cm
Answered by henry2,
Width = W.
Length = 2W.

2*W + 2*(2W) = 54
W = 9 cm = width.
Length = 2W = 18 cm.
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