[10=ln Delta ABC,AD" is the median,then "AB^(2)+A^(2)+A^(2)],[" (A) "AD^(2)+BD^(2)],[" (B) "2(AD^(2)+BD^(2))],[" (C) "(1)/(2)(AD^(2)+BD^(2))],[" (D) "AD^(2)+2BD^(2)]

In Delta ABC , AD is a median and AM _|_ BC.Prove that (a) AC^(2) = AD^(2) +BC.DM+ ((BC)/(2))^(2) (b) AB^(2) = AD^(2) -BC.DM+ ((BC)/(2))^(2) (c ) AC^(2) + AB^(2) = 2AD^(2) +(1)/(2) BC^(2)

In Delta ABC,/_A = right angle. If CD is a median, then prove that BC^(2) = CD^(2)+ 3AD^(2) .

In Delta ABC, If AD _|_ BC, then AB^2 + CD^2 is equal to

In triangle ABC, AD is a median. Prove that AB + AC gt 2AD

In triangle ABC, AD is a median. Prove that AB + AC gt 2AD

If ABC is an isosceles triangle and D is a point on BC such that AD perp BC, then AB^(2)-AD^(2)=BDdot DC( b) AB^(2)-AD^(2)=BD^(2)-DC^(2)(c)AB^(2)+AD^(2)=BDdot DC(d)AB^(2)+AD^(2)=BD^(2)-DC^(2)

If AD is the median of hat harr ABC, using vectors, prove that AB^(2)+AC^(2)=2(AD^(2)+CD^(2))

If AD is the median of Delta ABC, using vectors,prove that AB^(2)+AC^(2)=2(AD^(2)+CD^(2))

In an acute angled triangle ABC, AD is the median in it. Prove that : AD^(2) = (AB^(2))/2 + (AC^(2))/2 - (BC^(2))/4