A) \[9\sqrt{3}\,\,c{{m}^{2}}\]
B) \[4\sqrt{3}\,\,c{{m}^{2}}\]
C) \[10\sqrt{3}\,\,c{{m}^{2}}\]
D) \[16\,\,c{{m}^{2}}\]
E) None of these
Correct Answer: B
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