The triangle is right-angled, with the right angle in the lower left corner of the shape. It has a base of labelled as four centimetres and height labelled as three centimetres.

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.

Triangles are priced at $199 for a set of 7, while Mini Triangles are priced at $119 for a set of five. An expansion pack with three large Triangles is $60, and an expansion pack with 10 Mini ...