4.8.3

Volume

Test yourself

Volume of 3D Shapes

We can use formulae to calculate the volume of common shapes.

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Prism

  • Volume = area of base × length.
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Cuboid

  • Remember that a cuboid is a prism with rectangular base.
    • Volume = width × height × length = area of base × length.
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Cylinder

  • The area of a circle is πr2 so:
    • V = πr2 × h
  • Where h is the height of the cylinder.

Volume and Capacity

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Volume and capacity

  • The volume of a 3D shape is the amount of space inside it.
  • The capacity is the amount of a substance that the shape could hold.
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Units

  • Standard units for volume are cubic metres (m3), cubic centimetres (cm3) and cubic millimetres (mm3).
  • Standard units for capacity are litres (l) and millilitres (ml).
  • The imperial unit for volume is gallons.
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Converting between volumes

  • To convert between different units of volume, write out the measure as a multiplication and convert each part separately.

Jump to other topics

1Numbers

2Equations, Formulae & Identities

3Sequences, Functions & Graphs

4Geometry

5Vectors & Transformation Geometry

6Statistics & Probability

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