SOLUTION: A rectangular rug has the length of 12 feet and a diagonal of 20 feet. What is the perimeter of the rug?

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Question 52356: A rectangular rug has the length of 12 feet and a diagonal of 20 feet. What is the perimeter of the rug?
Answer by venugopalramana(3286) About Me  (Show Source):
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A rectangular rug has the length of 12 feet and a diagonal of 20 feet. What is the perimeter of the rug?
diagonal^2 = l^2+b^2
20^2=12^2+b^2
b^2=400-144=256
b=16'
perimeter = 2(l+b)=2(12+16)=56'