# Category:Definitions/Cones

This category contains definitions related to Cones.
Related results can be found in Category:Cones.

A cone is a three-dimensional geometric figure which consists of the set of all straight lines joining the boundary of a plane figure $PQR$ to a point $A$ not in the same plane of $PQR$:

## Pages in category "Definitions/Cones"

The following 28 pages are in this category, out of 28 total.