SOLUTION: the diagonal of a rectangle is 17 cm. if it's width is 8 cm. then its length is ?

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Question 331162: the diagonal of a rectangle is 17 cm. if it's width is 8 cm. then its length is ?
Answer by Tutorteddy.Com(12) About Me  (Show Source):
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The diagonal is the hypoteneus, while the length and breadth are the two sides of a triangle.
Hence, if L be the length of the rectangle, then
L^2 = 17^2 - 8^2 = 289 - 64 = 225
=> L = 15 cm.