Explore the properties of 2D shapes from one-sided circles to the eight-sided octagons. Shapes with 3 sides Explore shapes with 3 sides and look at curved and straight lines. Shapes with 4 sides ...

A polygon is a 2D shape with straight sides that meet at vertices ... For example, this cuboid above 6 faces, 12 edges and 8 vertices. The table below shows how the faces of some other 3D shapes ...