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AB and CD are common tangents to two cir...

AB and CD are common tangents to two circles which intersect each other at C as shown in the figure IF AB = 6cm , find CD.

Text Solution

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The correct Answer is:
4 cm.
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Knowledge Check

  • In the given figure, CD is a direct common tangents to the circles intersecting each other at A and B, then: angleCAD + angleCBD= ?

    A
    `120^(@)`
    B
    `90^(@)`
    C
    `360^(@)`
    D
    `180^(@)`

  • Two chord AB and CD of a circle are produced to intersect each other at a point P outside the circle. If AB = 7 cm, BP = 4.2 cm and PD = 2.8 cm, then the length of CD is:

    A
    15.8 cm
    B
    12 cm
    C
    14 cm
    D
    14.6 cm

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