A line from the centre to the edge

A line from edge to edge through the centre

A straight line joining two points on the edge

A slice between two radii and an arc

A line that touches the circle at one point

The part cut off between a chord and an arc

Parts of a circle

Chalkplay teamMathsGrades 6–88 pairsMatching game makerEnglish

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· 8 pairsShow answers

Keyword	Match
Radius	A line from the centre to the edge
Diameter	A line from edge to edge through the centre
Circumference	The distance all the way round
Chord	A straight line joining two points on the edge
Arc	Part of the circumference
Sector	A slice between two radii and an arc
Tangent	A line that touches the circle at one point
Segment	The part cut off between a chord and an arc

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