Answer:
Explanation:
1). segment AB ≅ segment CB ............. Given 
2). segment AD ≅ segment CD ........... Definition of midpoint 
3). segment BD ≅ segment BD .......... Reflexive Property 
4). ΔABD ≅ Δ CBD .......... SSS postulate of congruence 
5). ∠ A ≅ ∠ C .............. Corresponding angles in congruent Δs