A) \[6cm\]
B) \[6\frac{2}{3}cm\]
C) \[27\pi c{{m}^{3}}\]
D) \[30\pi c{{m}^{3}}\]
Correct Answer: D
Solution :
As shown in hint, distance saved \[=2\pi {{r}^{2}}\] or \[=3\pi {{r}^{2}}\] or \[\frac{4}{3}\pi \times {{6}^{3}}=\pi {{(0.2)}^{2}}\times h\] or \[\frac{4}{3}\times {{6}^{3}}={{(0.2)}^{2}}\times h\] or \[h=\frac{4\times {{6}^{3}}}{3\times {{(0.2)}^{2}}}=\frac{4\times 6\times 6\times 6}{3\times 0.04}\] or \[=7200cm=72cm\] or \[1c{{m}^{2}}=100m{{m}^{2}}\]
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