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This is a discussion on Area of Rectangle within the Brainteasers forums, part of the Brain Gym category; Rectangle ABCD has sides AB and BC in the ratio 3 : 1. If the diagonal AC is 5, then find the area of the rectangle. -- James....
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Re: Area of Rectangle
Let us say length of AB and BC are 3a,a. Then area of the rectagle is 3a^2.
By pythagoras theorem, 9a^2 + a^2 = 5^2 => 10 a^2 = 25 => a^2 = 2.5 therefore area of the rectanga is 7.5 Square units. -- James |
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