Using a set of corners of a Solid that lie in a plane to form the Vertices of a new Polygon is called faceting. Such Polygons may outline new Faces that join to enclose a new Solid, even if the sides of the Polygons do not fall along Edges of the original Solid.

**References**

Holden, A. *Shapes, Space, and Symmetry.* New York: Columbia University Press, p. 94, 1971.

© 1996-9

1999-05-26