Polygons can be regular or irregular. If the angles are all equal and all the sides are equal length it is a regular polygon. To find the sum of interior angles in a polygon divide the polygon into ...

Today on the 'Name That Thing' quiz, we will test how much you know about geometric shapes. Here are four types of polygons in the image below. Can you tell what these are called in mathematics? What ...

Before reading this guide, it may be helpful to read the guides from Module 1 on the properties of angles and the properties of 2D shapes. The sum of the angles inside any polygon can be found by ...

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 ...