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GCSE Mathematics · key term
The distance around the boundary of a circle.
Used by AQA, Edexcel and OCR
Specification G9, G17 · Paper 1, Paper 2, Paper 3
The boundary of a circle, or the distance once around that boundary.
Revise: Circle ComponentsThe word circumference can also mean the distance all the way around that boundary.
The distance once around the boundary of a circle.
Specification G9, G17 · Paper 1, Paper 2, Paper 3
The boundary of a circle, or the distance all the way around that boundary.
Revise: Circle PropertiesThe curved boundary is the circumference; the same word can also mean the length all the way around it.
Specification 6.02d, 7.01f, 8.05a, 8.05c, 10.02b · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Foundation), Paper 4 (Higher), Paper 5 (Higher), Paper 6 (Higher)
Revise: Standard Formulae ApplicationIf the radius doubles, the circumference doubles, whereas the area becomes four times as large.
The boundary of a circle.
The boundary of a circle, or the distance all the way around that boundary.
The complete distance around the outside of a circle.
A chord joins two points on the circumference; it is a diameter only if it passes through the centre.
Attach appropriate units: length units for perimeter or circumference, square units for area and surface area, and cubic units for volume.
Circumference is a length, so use linear units such as cm. Area uses square units such as cm².
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