A) \[\frac{2a}{\sqrt{3}}\]
B) \[2a\sqrt{3}\]
C) \[\frac{a}{\sqrt{3}}\]
D) \[\sqrt{3}\]
Correct Answer: C
Solution :
\[\Delta OAB\] is equilateral\[\Rightarrow \,r=a\] \[\therefore \,\,\ln \,\Delta OAC\,\] \[\frac{h}{a}=\tan {{30}^{0}}\]\[\Rightarrow \,h=\frac{a}{\sqrt{3}}\]You need to login to perform this action.
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