A) 56 m
B) 154 m
C) 176 m
D) None of these
Correct Answer: A
Solution :
\[\frac{\pi {{d}^{2}}}{4}=2464\] \[{{d}^{2}}=\frac{2464\times 4}{\frac{22}{7}}=3136\] \[d=\sqrt{3136}=56\,m.\]
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