Question

Of Pythagoras theorem :
If AD,BE,CF ARE MEDIAN of triangle ABC
To prove,
3(AB SQUARE + BC SQUARE +CA SQUARE ) = 4(AD SQUARE +BE SQUARE +CF SQUARE)
PLEASE SOLVE IT...

Answer 1

ab^2+ac^2=2(ad^2+bd^2)
ab^2+bc^2=2(be^2+ec^2)
ac^2+bc^2=2(cf^2+af^2)
add this three u ll get the answer dear