SOLUTION: find the perimeter of the rectangle whose length is 40cm and a diagonal is 41cm?

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Question 1047776: find the perimeter of the rectangle whose length is 40cm and a diagonal is 41cm?
Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
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The width of this rectangle is sqrt%2841%5E2+-+40%5E2%29 = sqrt%2881%29 = 9.

Now you know the length (40) and the width (9) and easily can find the perimeter.