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A B C D is a rectangle and E and F ar...

`A B C D` is a rectangle and `E` and `F` are the mid-points of `A D` and `D C` respectively. Then the ratio of the areas of `E D F` and `A E F C` would be (a) 1 : 2 (b) 1 : 3 (c) 1 : 4 (d) 2 : 3

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