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Math Help - Area problem (Might be over thinking the problem)

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    Area problem (Might be over thinking the problem)

    [IMG]i.imgur.com/oMb06fH.png[/IMG]

    I am trying to find the area but couldn't the radius be 6 or 9? Isn't there too little information? I know how to do the rest; I just need someone to tell me that what I'm saying makes sense.
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    Re: Area problem (Might be over thinking the problem)

    Can't see the image
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    Re: Area problem (Might be over thinking the problem)

    Quote Originally Posted by JeffM View Post
    Can't see the image
    Here's the link:

    i.imgur.com/oMb06fH.png
    Last edited by Oreospls; July 7th 2014 at 07:31 PM.
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    Re: Area problem (Might be over thinking the problem)

    You are right about there being two radii (but that's not what they're called, in this case they'd be called the semi-minor axis and the semi-major axis). The shape is actually half an ellipse. To find the area of an ellipse, use $\displaystyle \begin{align*} \pi\,a\,b \end{align*}$, where a and b are the semi minor and semi major axes.
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