SOLUTION: The length of a rectangular field is three times its width. The perimeter of the field is 144 cm. Find it's area

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Question 875499: The length of a rectangular field is three times its width.
The perimeter of the field is 144 cm. Find it's area

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi,

P = 2L + 2w = 144cm
L+ w = 72 L =
3w + w = 72
4w = 72
w = 18cm and L = 54cm
A = Lw = 972cm^2
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