# On Venn Diagrams and the Counting of Regions

by Branko Grunbaum (University of Washington)

College Mathematics Journal
November, 1984

Subject classification(s): Geometry and Topology | Plane Geometry
Applicable Course(s): 4.9 Geometry

Generalization of the fact that $n^2-n+2$ is the maximum number of disjoint regions in the plane that can be formed by $n$ circles using the basic set operations

A pdf copy of the article can be viewed by clicking below. Since the copy is a faithful reproduction of the actual journal pages, the article may not begin at the top of the first page.