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From a point P, the length of the tangent to a circle is 24 cm and distance of P from the center is 25cm. Find radius.

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From a point P, the length of the tangent to a circle is 24 cm and distance of P from the center is 25cm. Find radius.

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1 Answer

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Best answer

OP2 = OQ2 + QP2

252 = OQ2 + 242

OQ2 = 252 – 242

OQ2 = 625 – 576 = 49

OQ = 7 cm

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