Learn more about 3D shapes and nets with this BBC Bitesize Maths article. ... 4 cm and 5 cm. The prism is 6 cm long. The net is made up of two right-angled triangles and three rectangles.

Triangles, squares, rectangles and pentagons are examples of polygons. A polyhedron is a 3D shape with faces made from polygons. Cubes, cuboids, tetrahedron and prisms are examples of polyhedra.