The circular wire of diameter $10\,cm$ is cut and placed along the circumference of a circle of diameter $1\, metre.$ The angle subtended by the wire at the centre of the circle is equal to

  • A

    $\frac{\pi }{4} \,\,radian$

  • B

    $\frac{\pi }{3}radian$

  • C

    $\frac{\pi }{5}\,\,radian$

  • D

    $\frac{\pi }{{10}}\,\,radian$

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