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TWO TRIANGLES IN A RECTANGLE

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Source: — Data Sufficiency |
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by tohellandback » Thu Aug 06, 2009 8:00 pm
At first I thought the answer should be C.
but then it is A , but I am sure I would have got it wrong if I hadn't seen the OA

the area of the shaded region will be 1/2 * the area of the rectangle. Always.
just suppose any value x and l-x for the bases of the triangles and you will always get 1/2 * the area of rectangle
The powers of two are bloody impolite!!
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by gauravgundal » Thu Aug 06, 2009 9:56 pm
Yes OA A

We know the area of Rectangle =54
Just concentrate on the unshaded part of the Rectangle ,the unshaded part is nothing but a triangle whose area = (1/2)* base *height

The (base* height) is nothing but the area of rectangle.
Thus the area of unshaded portion = Area of rectangle -
(1/2) Area of rectangle
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by karthik151984 » Thu Aug 06, 2009 10:22 pm
Nice one!
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