SOLUTION: The length of a rectangle is three times its width. If the perimeter of the rectangle is 48yd, find its area

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Question 894549: The length of a rectangle is three times its width. If the perimeter of the rectangle is 48yd, find its area
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
length = 3x

width = x

perimeter = 48 yards

Use P = 2l + 2w


48 = 2(3x) + 2x


48 = 6x + 2x


48 = 8x


48/8 = x


6 = x


This tells me that the width is 6 yards and the length is 18 yards.


Use A = length times width to find the area.


A = 3x times x


A = 3(6)(6)

A = 18 times 6

A = 108

The area is 108 yards^2.