TG parts of a circle

• the outline of the circle

any part of the circumference

• a chord that passes through the centre of a circle. It is the size of the circle.

• a semi cirlce is half a circle

• a quater of a circle

• A segment is a cut part of a circle where the cut line does not go through the centre point.

• This is the line joining the centre to a point on the circumference. It is half of the diameter.

• 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.

• They are circles that have the same centre but different radii. A dart board is a good example.

• They are circles that have different centres and different radii