A circle is a set of points in a plane that are the same distance from a fixed point (called the centre). These set of points form the perimeter of the circle.
The radius is the distance from the centre of the circle to any point on its perimeter.
The circumference of a circle is the perimeter of the circle.
These parts of a circle are indicated in the accompanying diagram.
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Answer:
A circle is a set of points in a plane that are the same distance from a fixed point (called the centre). These set of points form the perimeter of the circle.
The radius is the distance from the centre of the circle to any point on its perimeter.
The circumference of a circle is the perimeter of the circle.
These parts of a circle are indicated in the accompanying diagram.