If ABC is a triangle with AB=20,BC=22 and CA=24. Let D lie on BC such that AD is the angle bisector of ∠BAC. What is AD^2?

Answer 1

This is a brilliant qn so i will only give you a hint: Use the law of sines.

Answer 2

See
http://www.jiskha.com/display.cgi?id=1371989906