Save guides, add subjects and pick up where you left off with your BBC account. Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight ...

KS1 Maths 2D and 3D shapes learning resources for adults, children, parents and teachers.

2D shapes are flat shapes and are known as 2-dimensional. They have a surface area only. 3D shapes are 3-dimensional and in Geometry are also known as solid shapes. They take up space and have a ...