Hi,

I am having a little bit of confusion with this two-column proof. I tried my very best to prove the two triangles are similar and I don't know if my answer is right. I have this feeling that aside from it's quite long, I also missed something or I totally messed it up. I don't know how to prove it using Triangle Angle-bisector Theorem or If it's even needed. I am not so sure. Please help ...

Here's the problem:

proof2.jpg

Here's what I've done

proof.jpg

Please help

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