TG parts of a circle

• the outline of the circle
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any part of the circumference

• a chord that passes through the centre of a circle. It is the size of the circle.
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• a semi cirlce is half a circle
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• a quater of a circle
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• A segment is a cut part of a circle where the cut line does not go through the centre point.
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• This is the line joining the centre to a point on the circumference. It is half of the diameter.

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• A section of a circle enclosed by two radii and an arc

A line joining the centre to a point on the circumference. It is often abbreviated to R. The plural of radius is radii.

• A line that intersects a circle at two points.
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• They are circles that have the same centre but different radii. A dart board is a good example.
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• They are circles that have different centres and different radii
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