A) 11 m
B) 22 m
C) 22.5m.
D) None of the above
Correct Answer: B
Solution :
Area of the circular field = 38.5 \[\pi \,{{r}^{2}}=38.5\] \[\frac{22}{7}{{r}^{2}}=38.5\,\,=\sqrt{\frac{38.5\times 7}{22}}=3.5\,m\] Length of its boundary \[2\,\pi \,r=2\times \frac{22}{7}\times 3.5=22m\]You need to login to perform this action.
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