Question

Attached question, thanks in advance :d

Answer 1

This can be solved using the law of sines and the law of cosines. Information on these laws (including the formulas) can be found at the following link;

http://hyperphysics.phy-astr.gsu.edu/hbase/lcos.html#c1

If you already had the formulas and need further help just let me know and I will try to step you through the problem.

Answer 2

Yeah, i have no idea how to work out this problem. help would be great.

Answer 3

I searched about it... i think it's "angle bisector theorem".