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Question Number 18704 by gourav~ last updated on 28/Jul/17

Answered by Principal last updated on 28/Jul/17

$$\mathrm{Circumference}\mathrm{of}\mathrm{circular}\mathrm{wire}$$$$=2\pi \times 7.5=15\pi \mathrm{cm}$$$$\theta =\frac{l}{r}=\frac{15\pi \mathrm{cm}}{120\mathrm{cm}}=\frac{\pi }{8}\mathrm{rad}=22.5°$$

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