[" 5.D,E and F are respectively the mid-points of sides "AB,BC" and "CA" of "/_ABC" ."],[" ratio of the areas of "/_DEF" and "Delta ABC" ."]

D,E and F are respectively the mid-points of sides AB.BC and CA of /_ABC. Find the ratio of the areas of /_DEF and /_ABC .

D, E and F are respectively the mid-points of sides AB, BC and CA of DeltaABC . Find the ratio of the areas of DeltaDEF" and "DeltaABC .

D, E and F are respectively the mid-points of sides AB, BC and CA of Delta ABC . Find the ratio of the areas of Delta DEF and Delta ABC .

D,Eand F are respectively the mid - points of sides AB, BC and CA of DeltaABC . Find the ratio of the areas of DeltaDEF and DeltaABC.

D,E and F are respectively the mid-points of sides AB,BC and CA of triangleABC .Find the ratio of the areas of triangleDEF and triangleABC .

D, E and F are respectively the mid-points of sides AB. BC and CA of triangleABC . Find the ratio of the areas of triangleDEF and triangleABC .

In Delta ABC, D, E, F are respectively the mid points of the sides AB, BC and AC. Find ratio of the area of Delta DEF and area of Delta ABC .

D,E and F are respectively the mid-points of the sides BC,CA and AB of a /_ABC. Show that (i) BDEF is a parallelogram

D, E and F are respectively the mid¬ points of the sides BC, CA and AB of triangleABC . Determine the ratio of the areas of triangles DEF and ABC.

If D,E and F are respectively,the mid-points of AB,AC and BC in Delta ABC, then BE+AF is equal to