Find out about regular 2D shapes and irregular polygons. Types of triangle Find out about scalene, equilateral, isosceles and right-angled triangles. Parts of a circle Discover the features of a ...
The simplest polygon is a triangle (a three-sided shape). Polygons of all types can be regular or irregular. A regular polygon has sides of equal length, and all its interior angles are of equal size.
Two-dimensional (2D) shapes are completely flat. They have two dimensions – length and width. A polygon is a closed 2D shape with straight sides that meet at vertices. Polygons can be regular or ...