Question 333102
<font face="Garamond" size="+2">

Are you trying to say that your pool is in the shape of an elliptical cylinder with major axis 20 and minor axis 15?

If that is the case, you need the area of your ellipse as the value for *[tex \Large B] in the formula *[tex \Large V\ =\ Bh].

The area of an ellipse is given by:

*[tex \LARGE \ \ \ \ \ \ \ \ \ \ A_{ellipse}\ =\ \pi ab]

Where *[tex \Large a] is the semi-major axis (half of the major axis, 10 feet in your case) and *[tex \Large b] is the semi-minor axis, half of the minor axis, or 7.5 feet in your case.

Putting it all together:

*[tex \LARGE \ \ \ \ \ \ \ \ \ \ V_{6in}\ =\ \pi(10)(7.5)(0.5)]

Remember, 6 inches is 1/2 foot.  You can do your own arithmetic

John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
</font>