Answer :

We know that, radius to a tangent is perpendicular at the point of contact

In right Δ OTP, By Pythagoras theorem (OP)2 = (OT)2 + (PT)2


= (7) 2 + (24)2


= 49 + 576


= 625


OP = 25 cm


Now, PR = OP + OR = 25 + 7 = 32cm

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