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In Fig, on a circle of radius 7 cm, tangent PT is drawn from a point P such that PT = 24 cm. If O is the centre of the circle, then the length of PR is(a) 30 cm (b) 28 cm (c) 32 cm (d) 25 cm |
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Answer» The correct option is (c) 32 cm. In ΔPOT, (OP)2 = (OT)2 + (PT)2 OP2 = (7)2 + (24)2 OP2 = (25)2 OP = 25 cm PR = OP + OR = 25 + 7 = 32 cm |
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