prove that ∠PQR = 90° .

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11. In a triangle PQR, N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2,prove that ∠PQR = 90° .
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Jul
11. In a triangle PQR, N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2,prove that ∠PQR = 90° . 11. In a triangle PQR N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2 prove that ∠PQR = [...]
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Tags: 11. In a triangle PQR , N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2 , prove that ∠PQR = 90° . ,