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
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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