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In Fig, PQ is a tangent from an external...

In Fig, PQ is a tangent from an external point P to a circle with centre O and OP cuts the circle at T and QOR is a diameter. If `angle POR=130^@` and S is a point on the circle, find `angle 1+angle 2.`

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The correct Answer is:
`angle 1 + angle 2` is `10^@`
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