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[" larger thangis a point on "PR" ,such ...

[" larger thangis a point on "PR" ,such that "QN perp PR" ."],[" 11.In a "A^(P)Q" ,Nis a prove that "/_PQR=90^(@)]

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In the triangle PQR, is a point on PR such that QN_|_PR . If PN. NR = QN^(2) , prove that lfloorPQR=90^(@) .

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