What are the missing reasons in the two-column proof?

Given: MO bisects anglePMN and OM bisects anglePON
Prove:trianglePMO is congruent to triangle NMO
See Attachments, I have no idea how to do this so please show work.

Question

What are the missing reasons in the two-column proof?

Given: MO bisects anglePMN and OM bisects anglePON
Prove:trianglePMO is congruent to triangle NMO
See Attachments, I have no idea how to do this so please show work.

anonymous · Answer

attachment

anonymous · Answer

1. Given
3. Reflective
4. Given
6. ASA 
what I can tell at first glance
2 and 5 have something to do with angle bisector theorem I just cant remeber the name

anonymous · Answer

Angle bisector theorem I believe

anonymous · Answer

@shania0703

anonymous · Answer

Im so sorry hun, I still cant figure these out, I will send over a couple friends and see if they can help.

anonymous · Answer

@dmezzullo

anonymous · Answer

2 and 5 is what i need help with Dx

anonymous · Answer

1. Given
2. Definition of angle bisector
3. Reflexive Property
4. Given
5. Definition of angle bisector
6. ASA