In a right angle triangle PQR, PR is the hypotenuse and the other two sides are of length 6cm and 8cm. Q is the point outside the triangle such that PQ=24cm RQ=26cm. What is the measure of angle QPR?


In PORPR=PO2+OR2=62+82=36+64=100=10 cm.PR2=100 cm2PQ2=242=576QR2=262=676PR2+QR2=100+576=676=QR2So, PRQ is right angled triangle.And QPR=90°.  ANS...

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