A prism is a 3D shape which has a constant cross section - both ends of the solid are the same shape and anywhere you cut parallel to these ends will give you the same shape. For example ...

Interestingly, Princeton University engineers have created innovative 3D structures from a single piece of material by combining the art of paper cutting and folding. They have developed 3D structures ...

A 3D shape with all straight edges and flat faces ... 6-sided cube dice are most common. Other types of dice are often used in role-playing games. Using your maths skills, help to build bridges ...