Pierre Varignon - Definition

Pierre Varignon ( born in 1654 in Caen - died on December 23, 1722 in Paris) was a French mathematician.

External links

• Varignon and Wittenbauer Parallelograms (http://agutie.homestead.com/files/VarigWitten.htm) by Antonio Gutierrez from "Geometry Step by Step from the Land of the Incas"