Cut the Knot
Cut the Knot!: Polygons: Formality and Intuition
This is a very interesting site about polygons. The site begins by distinguishing between shapes whose sides intersect and polygons whose sides do not overlap. After this short introduction, you will find information regarding area and...
Cut the Knot
Cut the Knot!: Napoleon's Theorem
Site that describes in detail Napoleon's theorem. To understand this site be sure you understand what the centroid of an object is. The site describes polygons in terms of the roots of unity of a function. The page gives an interactive...
University of Georgia
University of Georgia: Inter Math: N Gon
This site gives the general definition of an N-gon polygon with examples. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving N-gon polygons located in...