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Two circles touch each other externally at `P` . `A B` is a common tangent to the circle touching them at `A` and `B` . The value of `/_A P B` is `30o` (b) `45o` (c) `60o` (d) `90o`

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Knowledge Check

  • Two circles touch externally at P. QR is a common tangent of the circles touching the circles at Q and R. Then measure of /_QPR is

    A
    `60^@`
    B
    `30^@`
    C
    `90^@`
    D
    `45^@`

  • Two circles touch each other externally at P. AB is a direct common tangent to the two circles, A and B are point of contact and /_PAB = 35^@ . Then /_ABP is

    A
    `35^@`
    B
    `55^@`
    C
    `65^@`
    D
    `75^@`

  • Two circles touch each other externally at a point P and a direct common tangent touches the circles at the points Q and R respectively. Then angle QPR is

    A
    `45^@ `
    B
    `180^@`
    C
    `90^@`
    D
    `60^@`

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