`D` is the midpoint of side `BC` of `DeltaABC`. If `AB=4`, `AC=6` and `BC=8`, then find `l(AD)` and hence perimeter of `DeltaABD`.

If D is the mid -point of side AB of DeltaABC , then bar(AB) + bar(BC) + bar(AC) =

If D is the mid-point of the side BC of DeltaABC and the area of DeltaABD and the area of DeltaACD is 16cm^(2) , then the area of DeltaABC is

A circle touches the side BC of Delta ABC at F and touches AB and AC at D and E, respectively. If AD = 8 cm, then find the perimeter of Delta ABC .

Points D, E and F are the midpoints of sides AB, BC, and AC of DeltaABC . If DE = 10 cm, EF = 12 cm and DF = 8 cm, then find AB.

In a Delta ABC, AB=5, AC=6cm, BC=8 cm . Find the length of median AD.

A circle touches the side BC of DeltaABC at P and touches AB and AC produced at Q and R respectively. Prove that AQ=1/2(Perimeter of DeltaABC).