A) \[14.7\,\pi \,\,c{{m}^{2}}\]
B) \[15.2\,\pi \,\,c{{m}^{2}}\]
C) \[18.5\,\pi \,\,c{{m}^{2}}\]
D) \[20.8\,\pi \,\,c{{m}^{2}}\]
E) None of these
Correct Answer: A
Solution :
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