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 ...

In James Bell’s math class at Chapman High School, sophomores are trying to pinpoint exactly where two lines cross. The students in this rural Kansas high school already solved for that meeting point ...

Assuming that a match is one unit of length, it is possible to place 12 matches on a plane in various ways to form polygons with areas that have integral values. On this page are two such polygons: a ...