3D solid shapes

Here are some common solid shapes.

Diagrams of 3D solid shapes

Prisms and pyramids

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, in the prism below, the cross section is a hexagon.

This is called a hexagonal prism.

Hexagonal prism
Hexagonal cross section

A pyramid has sloping faces that meet at a vertex.

Square pyramid

Square-based pyramid

Triangle pyramid

Tetrahedron