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

1. ## 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.

2. ## Re: Area problem (Might be over thinking the problem)

Can't see the image

3. ## Re: Area problem (Might be over thinking the problem)

Originally Posted by JeffM
Can't see the image
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.