# A point is on a circle if the distance from the center of the circle to the point is equal to the

1. Area

2. Circumference

3. Radius

4. Diameter

The radius of a circle is the distance between the center of the circle to any point on its boundary.

## Answer: Radius

A circle has an infinite number of radii and all the radii of the circle are equidistant from the center of the circle.

## Explanation:

A circle is a collection of points on a two-dimensional plane, which are equidistant from the center point 'O'. The distance from the center point to any endpoint on the circle is called the radius of a circle. It can also be defined as the length of the line segment from the center of a circle to a point on the circumference of the circle.

A point is on a circle if the distance from the center of the circle to the point is equal to the radius.