if length of the tangent to a circle from a point ,which is 13 cm away from the centre,is 12 cm .find the radius of the circle
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Radius=√25=5cm, By using Pyt. Theorem
(OP)^2= (QP)^2 + (OQ)^2
(OP)^2= (QP)^2 + (OQ)^2
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