Answer:
Given below is completed proof
Step-by-step explanation:
Given PQ=PR
Statement                  Reason
PQ≅PR                      Given
Point M is the midpoint of QR¯¯¯¯
Draw median PM¯¯¯¯¯¯ . Two points determine a line.
PM=PM Â Â Â Â Â Â Â Â Â Â Â Â Â Â Reflexive Property of Congruence
QM=RM Â Â Â Â Â Â Â Â Â Â Â Â Â Â Definition of midpoint Â
△PQM≅△PRM       SSS axiom(side, side, side)
∠Q≅∠R                Congruence property for triangles
Hence proved