A) \[10\sqrt{3}\,{{m}^{2}}\]
B) \[15\sqrt{3}\,{{m}^{2}}\]
C) \[20\sqrt{3}\,{{m}^{2}}\]
D) \[100\sqrt{3}\,{{m}^{2}}\]
Correct Answer: D
Solution :
Perimeter of an equilateral triangle \[60\,m\] \[\Rightarrow \]\[3a=60\,m\Rightarrow a=20\,m\] Area of an equilateral triangle \[=\frac{\sqrt{3}}{4}{{a}^{2}}=100\sqrt{3}{{m}^{2}}\]
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