The ratio between the perimeter and the width of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the width of the rectangle? Answers:
A) 12 cm	B) 16 cm	C) 18 cm	D) 20 cm	E) 22 cm
2L+2W = 5W   L = 3W/2   W*L = 216   3W^2/2 = 216   W^2 = 144   W = 12   The answer is 12 cm.
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The ratio between the perimeter and the width of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the width of the rectangle?