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From an external point P, tangents PA an...

From an external point P, tangents PA and PB are drawn to a circle with centre O. If `|__PAB=50^(@)`, find `|__AOB`.

Text Solution

Verified by Experts

The correct Answer is:
`|__AOB = 100^(@)`.
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Two concentric circles with centre O are of radius 3 cm and 5 cm. From an external point P, two tangents PB and PA are drawn to these circles respectively. If PA=12 cm, find PB.

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Knowledge Check

  • APB is tangent at P to the circle with centres O.If angleQPB=60^(@) ,then anglePOQ is :

    A
    `120^(@)`
    B
    `90^(@)`
    C
    `100^(@)`
    D
    `60^(@)`
  • In the given TP and TQ are tangents drawn to the circle with centre O.If anglePTQ=40^(@) ,then angleOPQ is:

    A
    `40^(@)`
    B
    `30^(@)`
    C
    `20^(@)`
    D
    `10^(@)`
  • Similar Questions

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