Answer:
Explanation:
Top Problem:
Reason:
1. Given 
2. Definition of segment bisector ( segment bisector is a line, ray or segment that divides a segment into to congruent segments)
3. Vertical angles are congruent
4. SAS (Side ZP≅XP Angle ZPY ≅ WPX Side WP≅YP) 
Bottom Problem 
Reason:
1. Given
2. Definition of angle bisector ( an angle bisector is a line, ray or line segment that divides an angle in two congruent angles)
3. Definition of angle bisector 
4. Reflexive Property ( a line segment is congruent with itself) 
5. ASA (Angle Side Angle Theorem of Congruency)