A Circle Is Named By Its. A circle is the set of all points in a plane that are the same distance from a given point, called the center of a circle. Thus, the circle to the right is called circle A since its center is at point A.
As you can see, a circle has many different radii and diameters, each passing through its center. A circle is really just all points on the plane equidistant from the center. Area of a Circle and its formula.
The figure below shows circle C, which can be written as ᭪C.
Given the graph of a circle, find its center and radius.
A circle is a simple closed shape. A circle is really just all points on the plane equidistant from the center. Diameter Arc Part of a circle named by its endpoints Line segment that passes through the center of a circle, and whose endpoints lie on the circle Radius • Line.