please answer foll qs in simple steps
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well here we go
mn is common
ang. cnm= ang.dnm
ang.dmb= ang.mcn(theorem)
and also ang.amc= ang.ndm
now n+m= 180
which means they are parrellel
now by aas criterion the triangle are congruent.
now we move to second one
mn is common
ang. cnm= ang.dnm
ang.dmb= ang.mcn(theorem)
and also ang.amc= ang.ndm
now n+m= 180
which means they are parrellel
now by aas criterion the triangle are congruent.
now we move to second one
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