Posted by Casablanca on .
A solid has, as its base, the circular region in the xyplane bounded by the graph of x^2 + y^2 = 4. Find the volume of the solid if every cross section by a plane perpendicular to the xaxis is a quarter circle with one of its radii in the base.

Calculus  more info 
Steve,
what does "one of its radii in the base" mean? Is its radius centered on the xaxis, or on a point of the circle, or what?

Calculus (Volume of Solids) 
Mooch,
This is precisely why I posted, I thought that the wording of this practice problem might make sense to someone else, because it completely confused me.
After a lot of thinking, I figured that the solid of revolution was a hemisphere. It was created by rotating the quarter circle in the first quadrant around the yaxis perhaps. This resulted in a volume of (32/3)pi.