This is an example of how to draw filled pentagons in SVG without using approximated coordinates. The pentagons are composed of squares in a mathematically
(3383 bytes) Penrose pentagon based on the images the following images: [[Image:Penrose pent.svg|100px|]] [[Image:Penrose triangle.svg|100px|]] English
(2817 bytes) A set of eight points in general position with no convex pentagon. According to a generalization of the [[Happy Ending problem]], every nine