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refer to attachments for the question



Step-by-step explanation:
We have:
As per above three sides of one triangle are congruent to three sides of another triangle.
In ∆PQR and ∆MNR
PQ=MN
QR=RN
<Q=<M=90°
Hence by
Side angle side congruency
[tex]\\ \sf\longmapsto ∆PQR\cong ∆MNR[/tex]
Proved