Xét ΔMQP và ΔNQP có
QM=QN
\(\widehat{MQP}=\widehat{NQP}\)
QP chung
Do đó: ΔMQP=ΔNQP
=>PM=PN=3cm
Xét ΔMQP có \(\widehat{M}+\widehat{MQP}+\widehat{MPQ}=180^0\)
=>\(\widehat{M}+80^0+63^0=180^0\)
=>\(\widehat{M}=100^0-63^0=37^0\)
ΔMQP=ΔNQP
=>\(\widehat{M}=\widehat{N}=37^0\)
ΔMQP=ΔNQP
=>\(\widehat{MPQ}=\widehat{NPQ}=80^0\)
\(\widehat{MPN}=\widehat{MPQ}+\widehat{NPQ}=80^0+80^0=160^0\)
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