Question

I need help with a math problem...

Answer 1

Reason no.. 3: Common side of both triangles
Reason no.. 4: There is no axiom called A-A-S, however, as two angles are equal, the third angles are definitely equal. So, both triangles are congruent by A-S-A axiom
Reason no.. 5: corresponding sides of a congruent triangle.
If you don't understand any of the explanation above, I feel more than happy to help you again..

Answer 2

No, I think I understand this problem now. Thank you for your help!