A) \[\frac{2\sqrt{3}}{5}\]
B) \[\frac{4\sqrt{3}}{5}\]
C) \[\frac{2\sqrt{3}}{15}\]
D) \[\frac{4\sqrt{3}}{15}\]
Correct Answer: D
Solution :
As \[h=\frac{\sqrt{3}}{2}\,a\Rightarrow \,\,\frac{2}{5}\,=\frac{\sqrt{3}}{2}\,a\] \[\Rightarrow \,a=\frac{4}{15}\,\sqrt{3}\]You need to login to perform this action.
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