A) \[9\pi \]
B) \[4\pi \]
C) \[36\pi \]
D) \[6\pi \]
Correct Answer: D
Solution :
\[9{{x}^{2}}+4{{y}^{2}}=36\] Þ \[\frac{{{x}^{2}}}{4}+\frac{{{y}^{2}}}{9}=1\], which is equation of an ellipse. Remember area enclosed by ellipse is \[\pi \,ab\]i.e., \[\pi \ 2.3=6\pi \].You need to login to perform this action.
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