1.

A 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 

Answer»

(C)  \(\frac{\pi}5\) radian

A 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 \(\frac{\pi}5\) radian



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