Standard Units
Maths: Edexcel IGCSE Higher, topic 4.7.1
Length and Area
Length
- Standard units for length are kilometres (km), meters (m), centimetres (cm) and millimetres (mm).
Imperial units
- For long distances either kilometres or miles can be used.
- 5 miles is roughly 8 kilometres.
- Miles are imperial (traditional) units. The other imperial units for length are feet, yards and inches.
Area
- Standard units for area are square kilometres (km2), square metres (m2), square centimetres (cm2) and square millimetres (mm2).
Converting area units
- To convert between different units of area, write out the measure as a multiplication and convert each part separately.
Test yourself on Standard Units
Which of these are units of length?
Which of these are units of area?
Which of these are imperial units of length?
Roughly how many kilometres is 5 miles?
When Mo Farah runs a marathon (about 26 miles), roughly how many kilometres does he run?