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In a right angled triangle,PQR,angle Q=90 degree if a)PQ=9 cm;QR=40cm and find PR b)PR=37cm;PQ=12cm,find QR |
| a) PQ = 9 QR = 40 PR2 = PQ2 + QR2 PR = root of 40 2 + 9 2 = root of 1681 = 41 b) PR = 37 PQ = 12 QR = root of PR 2 - PQ2 = root of 37 2 - 12 2 = root of 1369 - 144 =35 |
