A) \[36\sqrt{5}\]
B) \[4\sqrt{5}\]
C) \[36\sqrt{7}\]
D) \[36/\sqrt{7}\]
Correct Answer: D
Solution :
\[r=\frac{3\,h}{\sqrt{7}}=\frac{3\times 12}{\sqrt{7}}=\frac{36}{\sqrt{7}}\].You need to login to perform this action.
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