in the given fig , ∆PQC …

in triangle PQC and triangle PRC, Given - QC= PR PQ=CR To prove:- angle PCQ= angle CPR Proof:- In triangle PQC and triangle PRC:- QC=PR [GIVEN] PQ=CR [GIVEN] andPC=PC [COMMON] by SAS similarly criterion, triangle PQC is congruent to triangle PRC. therefore by C.P.C.T angle PCQ =angle CPR prooved.

In triangle PQC and triangle PRC,
Given - QC= PR
PQ=CR
To prove:- angle PCQ= angle CPR

Proof:- In triangle PQCand triangle PRC:-

QC=PR [GIVEN]
PQ=CR [GIVEN]
andPC=PC [COMMON]
by SAS similarly criterion, triangle PQC is congruent to triangle PRC.
therefore by C.P.C.T
angle PCQ =angle CPR