[" If "D" is the mid-point of side "AB" of "Delta],[ABC," then "bar(AB)+bar(BC)+bar(AC)=]

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 side AB of DeltaABC , then bar(AB) + bar(BC) + bar(AC) =

If D is the midpoint of the side BC of a triangle ABC then bar(AB)^(2)+bar(AC)^(2)=

If D be the mid-point of the side BC of Delta ABC, then AB^(2) + AC^(2) = 2BD^(2)+ "….................." .

If D, E and F are respectively the mid-points of AB, AC and BC in DeltaABC then bar(BE)+bar(AF)=

If I is the centre of a circle inscribed in a DeltaABC , then abs(bar(BC))bar(IA)+abs(bar(CA))bar(IB)+abs(bar(AB))bar(IC)=

In DeltaABC , if D is the midpoint of BC then prove that bar(AD)=(bar(AB)+bar(AC))/2

If D is the mid-point of the side BC of a triangle ABC, prove that vec AB+vec AC=2vec AD .

If D is the mid-point of side BC of a triangle ABC and AD is perpendicular to AC, then