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If `P T` is tangent drawn from a point `P` to a circle touching it at `T` and `O` is the centre of the circle, then `/_O P T+/_P O T=` `(a) 30^@` `(b) 60^@` `(c) 90^@` `(d) 180^@`

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RD SHARMA ENGLISH-CIRCLES-All Questions
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  14. In Fig. 10.96, if T P and T Q are tangents drawn from an externa...

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