`AD, BE and CF` are the perpendiculars from the angular points of a `DeltaABC` upon the opposite sides. The perimeters of the `DeltaDEF and DeltaABC` are in the ratio-

D,E,F are midpoints of sides BC,CA,AB of DeltaABC . Find the ratio of areas of DeltaDEF and DeltaABC .

In an acute angled triangle ABC , let AD, BE and CF be the perpendicular opposite sides of the triangle. The ratio of the product of the side lengths of the triangles DEF and ABC , is equal to

In an acute angled triangle ABC , let AD, BE and CF be the perpendicular opposite sides of the triangle. The ratio of the product of the side lengths of the triangles DEF and ABC , is equal to

In an acute angled triangle ABC, let AD,BE and CF be the perpendicular opposite sides of the triangle.The ratio of the product of the side lengths of the triangles DEF and ABC, is equal to

In DeltaABC , D, E and F are the mid points of the sides, then DeltaDEF =

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 .

In DeltaABC the midpoints are D,E and F of the sides AB,BC and CA, then DeltaDEF:DeltaABC is

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.

The altitudes from the angular points A,B, and C on the opposite sides BC, CA and AB of DeltaABC are 210, 195 and 182 respectively. Then the value of a is ____

The altitudes from the angular points A,B, and C on the opposite sides BC, CA and AB of DeltaABC are 210, 195 and 182 respectively. Then the value of a is ____