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    The length of each of two tangents drawn from an external point to a circle is 10 cm. What is the approximate distance from the external point to the
    Question

    The length of each of two tangents drawn from an external point to a circle is 10 cm. What is the approximate distance from the external point to the center of the circle, if the radius is 6 cm?

    A.

    4 cm

    B.

    10 cm

    C.

    12 cm

    D.

    16 cm

    Correct option is C

    Given:
    Length of tangent from external point = 10 cm
    Radius of the circle = 6 cm
    Formula Used:
    If tangents are drawn from an external point P to a circle with center O and point of contact T, then:
    OP² = OT² + PT²
    Solution:
    Here,
    OT = 6 cm
    PT = 10 cm
    OP² = 6² + 10²
    OP² = 36 + 100
    OP² = 136
    Taking square root:
    OP = √136 ≈ 11.66 ≈ 12 cm

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