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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.

I<div style="width: 70%; margin: 0 15% 1em 15%; text-align: center; background-color: #DEE6ED; padding: 0.5em; border: solid 1px #6699CC;">'''This article has been identified as being in conservapedia and is therefore classified under the heading worthless. This assement was made by the Icewedge inquisition.'''<br /><small>To go to a more factual encyclopedia go to wikipedia or even to uncyclopedia because even it has more content than CP.</small></div><includeonly>[[Category:Articles needing major improvement]]</includeonly>

 

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.

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.