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1 pointIn a triangle PQR MN II QR if PN=3.6 cm NR=2.4 cm and PQ=5 cm then PM is |
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Answer» ONG>Answer: R.E.F.image In △PQR,∠PQR=90 ∘
BY Pythagoras theorem, PR 2 =PQ 2 +QR 2
⇒(5) 2 =PQ 2 +(4) 2
⇒(5) 2 −(4) 2 =PQ 2
⇒PQ 2 =25−16 ⇒PQ 2 =9 ⇒PQ= 9
⇒PQ=3 tanR= QR PQ
= 4 3
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