The Total solution for NCERT class 6-12
In Figure, AD is amedian of a triangle ABC and AM ⊥ BC.
Prove that :
(i) AC_2 = AD_2 + BC.DM + 2 (BC/2)_ 2
(ii) AB_2 = AD_2 – BC.DM + 2 (BC/2)_ 2
(iii) AC_2 + AB_2 = 2 AD_2 + ½ BC_2
Solution