A 2D shape could have line symmetry or rotation symmetry, or both! 3D shapes are described by their faces, edges and vertices. The faces can be the same shape or different, and a 3D shape could ...

For example a cube has 8 vertices. 2D shapes are boring. Ah! Not really. But got your attention. Now. 3D shapes, they have 3 dimensions. Length, width and depth. What would the 3D version of a ...