Doc:Glossary/Cone

Cone

Is a 3D primitive belonging to the mesh class of objects. When adding this primitive, the user can choose any number of vertices (at the base) greater than 2, so its cross-section can vary from triangular (a tetrahedron object) to, effectively, circular (near true cone object). Its default height from base to point of the cone is 2 Blender Units, and its default "diameter" is nominally 2 Blender Units. How close it gets to that base diameter is dependent on the cross-section. This object is a closed object, with faces all around its circumference and across its base.