A) \[{{50}^{o}}\]
B) \[{{210}^{o}}\]
C) \[{{100}^{o}}\]
D) \[{{60}^{o}}\]
Correct Answer: B
Solution :
Given that diameter of circular wire = 14cm Therefore length of circular wire = 14p cm. \[\therefore \] Required angle \[=\frac{\text{arc}}{\text{radius}}=\frac{14\pi }{12}=\frac{7\pi }{6}\] \[=\frac{7}{6}\pi .\frac{{{180}^{o}}}{\pi }={{210}^{o}}\].
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