Find out how to measure the area of rectilinear shapes by breaking them down into ... measure capacity in millilitres and litres. What is volume? Find out how the volume of a 3D shape can be ...

The volume of a shape can be measured in mm³, cm³, m³, and km³. The unit of measure you use depends on the size of the shape. A compound shape is a shape made up of other recognisable shapes.