They are the same. Here is a table to help you remember how to identify some common 2D shapes by their properties. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have ...

Image caption, 3D shapes that are non-polyhedral include cylinders, cones, and spheres. At least one face is not a polygon. At least one face has a curved surface. A cylinder has a constant ...

Save guides, add subjects and pick up where you left off with your BBC account. Two-dimensional (2D) shapes are completely flat. They have two dimensions – length and width. A polygon is a ...