SOLUTION: a retangle has a area of 72 its length is twice its width what is its perimeter?

Question 341888: a retangle has a area of 72 its length is twice its width what is its perimeter?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a retangle has a area of 72 its length is twice its width what is its perimeter?
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Area = length * width
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Let the width be "w"
Then the length is "2w"
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Solve with substitution:
72 = w*2w
36 = w^2
w = 6 units (width)
2w = 12 units (length)
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Now, determine the perimeter.
P = 2(L+W)
P = 2(12+6)
P = 2(18)
Perimeter = 36 units
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Cheers,
Stan H.
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