length width depth 3D shapes have different properties to 2D shapes. Faces - A face is a flat surface on a 3D shape. Edges - An edge is where two faces meet. For example a cube has 12 edges.

Technology Robots These 2D machines can shapeshift into moving 3D robots Mori3's triangular, modular design allows it to fuse with its companions, and could one day make it into space. By Andrew Paul ...

Researchers have developed a technique that programs 2D materials to transform into complex 3D shapes. University of Texas at Arlington researchers have developed a technique that programs 2D ...