Mathematics · Grades 4–8
Geometry: units and dimensions · revision card
Perimeter uses length units, area uses square units and volume uses cubic units.
Keep these ideas clear
Match dimensions
Perimeter uses length units, area uses square units and volume uses cubic units.
Read the labels
Check whether a given length is a radius, diameter, height or sloping side.
Two useful examples
Which unit is appropriate for the area of a classroom floor?
m²
m²
Which unit is appropriate for the volume of a box?
cm³
cm³
Explain it without looking
- Explain why adding 3 cm to 4 cm² is not a valid geometric total.
Learning preview · teacher review required. Grade bands are approximate, not official curriculum alignment.