SOLUTION: The diagonal of a rectangle is 20 in long. The rectangle's length is 3 times its width. Find the length of the rectangle.
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Question 141756: The diagonal of a rectangle is 20 in long. The rectangle's length is 3 times its width. Find the length of the rectangle. Answer by Shifa(4) (Show Source):
You can put this solution on YOUR website! Diagonal of rectangle=20
Breadth of rectangle=x
Length of rectangle=3x
Therefore by pythagoros theorem,
"3x"square + "x"square="20"square
"4x"square = 400
"x"square = 400/4
"x"square = 100
x = 10
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