# SOLUTION: If the length and width of a rectangle are each increased by 10% then the perimeter of the rectangle is increased by (A) 1% (B) 10% (C) 20% (D) 21%

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 Click here to see ALL problems on Geometry Word Problems Question 248913: If the length and width of a rectangle are each increased by 10% then the perimeter of the rectangle is increased by (A) 1% (B) 10% (C) 20% (D) 21%Answer by nerdybill(6962)   (Show Source): You can put this solution on YOUR website!If the length and width of a rectangle are each increased by 10% then the perimeter of the rectangle is increased by (A) 1% (B) 10% (C) 20% (D) 21% . If L is length and W is width . Perimeter of any rectangle: 2(L+W) . If width and length increased by 10%: 2((1.1)L+(1.1)W) 2(1.1)(L+W) (2.2)(L+W) . Percent increase: the increase is .2(L+W) percent is then: .2(L+W)/2(L+W) * 100 .2/2 * 100 0.1 * 100 10% . Answer: B