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Circle Terms
Vocab relating to circle parts
Term | Definition |
---|---|
Tangent | A straight line that touches the circle at one point. |
Radius | A straight line from the centre to the edge of a circle. |
Circumference | The perimeter of a circle. |
Diameter | A straight line from one side of a circle to another passing through the centre. |
Chord | Any straight line that reaches from one side of a circle to the other. |
Sector | An area of a circle bound by 2 radii and an arc |
Segment | an area of a circle created by a chord and an arc |
Arc | Any part of the circumference |