How do I write the proof of the Angle Bisector Theorem?

Question

nikato · Answer

so what is the angle bisector theorem?

anonymous · Answer

I'm not sure the teacher just told us to write a proof for it. she didn't give us a triangle for anything.

nikato · Answer

its fine. but i would like you to tell me what it is. so we can have a given and something we need to prove

anonymous · Answer

I would think that it was |dw:1391389567918:dw|

nikato · Answer

ok so this is what we have
given: BD bisects <ABC
prove;<ABD=<CBD

nikato · Answer

avtually, lets start with something even simplier

anonymous · Answer

then it would be this right
 |dw:1391390012416:dw|

nikato · Answer

|dw:1391390085899:dw|

ikram002p · Answer

the Angle Bisector thm 

|dw:1391390033783:dw|

nikato · Answer

using line plotting thoerem, draw BA and BC such that BA=BC
|dw:1391390163696:dw|