A) \[\frac{r}{\sqrt{2}}\]
B) \[2r\]
C) \[r\sqrt{2}\]
D) \[\sqrt{2r}\]
Correct Answer: C
Solution :
If the radius of the new cylinder be R then, \[2\pi {{r}^{2}}h=\pi {{R}^{2}}h\] \[\Rightarrow \]\[{{R}^{2}}=2{{r}^{2}}\Rightarrow R=\sqrt{2r}\]You need to login to perform this action.
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