i am a meritnation paid user

in equilateral trangle d is a pnt on bc side bd=1third bc prove that 9ad2 =7ab2

Dear Student!

Given: ΔABC is an equilateral triangle. D is point on BC such that BD = BC.

To prove: 9 AD2 = 7 AB2

Construction: Draw AE ⊥ BC.


  • 241
What are you looking for?