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In Fig. ABC is a triangle co-ordinates o...

In Fig. ABC is a triangle co-ordinates of whose vertex A are `(0, -1)`. D and E respectively are the mid-points of sides AB and AC their co-ordinates are `(1, 0)` and `(0,1)` respectively. If F is the mid-point of BC find the areas of `triangleABC` and `triangleDEF`

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