BBC Boss Tim Davie outlined a national plan to switch off traditional broadcast transmissions in the 2030s, to ensure a ...

This is called a hexagonal prism. Some 3D shapes, like cubes and pyramids, can be opened or unfolded along their edges to create a flat shape. The unfolded shape is called the net of the solid.

Watch the video to learn how 3D shapes, such as a cube, can be created from nets ... The net of a triangular prism will be made of three rectangles and two triangles - a bit like a tent.