Key learning points

1. The shape and area of the base of a prism can be found.
2. The area of the cross-section multiplied by the length gives the volume of the prism.
3. This can be used to find the volume of any prism.
4. Unknown lengths can be found when the volume of a prism is known.

Keywords

• Cross-section - a 2D face made from cutting straight through any plane of a 3D object.

• Volume - the amount of space occupied by a closed 3D shape.

Common misconception