A net is a 2D shape that folds to make up a 3D shape. The net of a dodecahedron (a platonic solid with twelve pentagonal faces) is made up of 12 regular pentagons. A cube has six faces.

Use the drop down menu to choose from the possible solids: Tetrahedron, Cube, Octahedron, Dodecahedron, Icosahedron, or "My Own Net." Manipulate set shapes in the workspace. Click and drag the shape ...