statements
1. ab ≈ ac ~ given
2. abc is isosceles ~ definition of isosceles
3. bd≈cd ~ given
4. angle b ≈ angle c~ base angles an
isosceles triangle are ≈
5. abd2 ≈ acd ~

choose the missing reason in the proof

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site