Polygons can be regular or irregular in shape. A polygon is a closed 2D shape with at least three sides. A regular polygon is a polygon with all equal sides and angles. An irregular polygon is a ...

A French mathematician has completed the classification of all convex pentagons, and therefore all convex polygons, that tile the plane. One of the oldest problems in geometry asks which shapes tile ...

Journal of Applied Probability, Vol. 19, Essays in Statistical Science (1982), pp. 97-111 (15 pages) For each particle in an aggregate of point particles in the plane, the set of points having it as ...