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From a point Q. the lent of tangent to a...

From a point Q. the lent of tangent to a circle is 24cm and the distance of Q from the centre is 25cm. The radius of the circle is……..

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Knowledge Check

  • Choose the correct answer and give justification for each. (ii) From a point Q, the length of the tangent to a circle is 24 cm. and the distance of Q from the centre is 25 cm. The radius of the circle is 7 c m 12 c m 15 c m 24.5 c m

    A
    `7cm`
    B
    `12cm`
    C
    `15cm`
    D
    `24.5cm`

  • The pair of tangents AP and AQ drawn from an external point to a circle with centre O are perpendicular to each other and the length of each tangent is 4 cm. Then, the radius of the circle is ... cm.

    A
    10
    B
    7.5
    C
    5
    D
    2.5

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