D,E and F are respectively the mid points of the sides BC, CA and AB of a triangle ABC.Show that area of BDEF =half area of ABC.
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BDEFis a parallelogram
DF is diagonal
diagonal of a parallelogram divides it in to 2 triangles of equal area
DF is diagonal
diagonal of a parallelogram divides it in to 2 triangles of equal area
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