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, 19:25, April 22, 2007
In mathematics, a '''right circular cone''' is a three dimensional object formed by rotating two intersecting [[line]]s about the line which [[bisect]]s them.
The intersection of a plane with this object forms an important set of two dimensional functions, called the [[conic section]]s.
Cones in general do not have to be "right" or "circular", and may be truncated, i.e., not extend to infinity. A familiar example of a (doubly) truncated cone is a basketball net.
[[category:geometry]]
[[category:mathematics]]