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2015-10-23T19:18:29+05:30

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True.because the tangent and radius are in right angles. They also form a quadilateral. so angle sum property of quadilateral is 360 degree so,

90+90+60+X=360

so, X = 60

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thank u so muchhhh
correction here , when two tangents intersect there are two supplementary angles at the intersection: actually X = 120 deg. Its supplementary is 60 deg.
arithmetic mistake above ... X = 120 deg.