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Definition of Circle 📂Geometry

Definition of Circle

Definition

A set of points on a plane whose distance from a single point $O$ is constant is called a circle.

  • The point $O$ is called the center of the circle.
  • The distance $r$ from the center is called the radius.

Description

It can be considered as a special case of an ellipse. An ellipse where the two foci are the same point becomes a circle.