In the given figure O is the centre of the circle and PT is a tangent at T.If PC =3cm and PT=6cm,calculate the radius of the circle.
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let radius be x then form an equation in right angle triangle OPT that hyp.square= s1sq.+s2sq
let radius be x then form an equation in right angle triangle OPT that hyp.square= s1sq.+s2sq
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