Find the area of the region bounded by curve $\displaystyle 9x^2 + 25y^2 = 225$ and outside the circle $\displaystyle x^2+y^2 =9$

Can someone pls explain how to solve this? Thanks in advance.

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- Aug 3rd 2012, 06:21 AMshiny718Find the area of region bounded by two equations
Find the area of the region bounded by curve $\displaystyle 9x^2 + 25y^2 = 225$ and outside the circle $\displaystyle x^2+y^2 =9$

Can someone pls explain how to solve this? Thanks in advance. - Aug 3rd 2012, 06:41 AMProve ItRe: Find the area of region bounded by two equations
The area of an ellipse is $\displaystyle \displaystyle \begin{align*} \pi \, a \, b \end{align*}$, and the area of a circle is $\displaystyle \displaystyle \begin{align*} \pi \, r^2 \end{align*}$.

Can you recognise what the values of a and b are from the equation of your ellipse? Can you recognise what the radius is from the equation of your circle? - Aug 3rd 2012, 06:46 AMshiny718Re: Find the area of region bounded by two equations
Ok. Thanks for prompting me. Yeah sure I can solve the rest already. Thanks!