SOLUTION: A rectangular piece of metal has an area of 18 square centimeters. Its perimeter is 18 centimeters. What are the dimensions of the piece?
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Question 838411: A rectangular piece of metal has an area of 18 square centimeters. Its perimeter is 18 centimeters. What are the dimensions of the piece? Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! L*w=18
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2L+2w=18
2L=18-2w
L=9-w
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w(9-w)=18
9w-w^2=18
w^2-9w+18=0
(w-6)(w-3)=0
L=6 and w=3 or vice versa.
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Ed
