1.

The circular wire of diameter 10cm 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 [MNR 1974]

A. \[\frac{\pi }{4}radian\]
B. \[\frac{\pi }{3}radian\]
C. \[\frac{\pi }{5}radian\]
D. \[\frac{\pi }{10}radian\]
Answer» D. \[\frac{\pi }{10}radian\]


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