What are the missing parts that correctly complete the proof?

given: point a is on the perpendicular bisector of segment p q. prove: point a is equidistant from the endpoints of segment p q. image: a horizontal line segment p q. a midpoint is drawn on segment p q labeled as x. a vertical line x a is drawn. a is above the horizontal line. the angle a x q is labeled a right angle. the line segments p x and q x are labeled with a single tick mark. a dotted line is used to connect point p with point a. another dotted line is used to connect point q with point a.

drag the answers into the boxes to correctly complete the proof.

statement reason
1. point a is on the perpendicular bisector of pq. given
2. px≅qx
3. ∠axp and ∠axq are right angles.
4. all right angles are congruent.
5. ax≅ax reflexive property of congruence
6. △axp≅△axq
7. ap≅aq
8. point a is equidistant from the endpoints of pq. definition of equidistant