Question

the definition of a circle uses the undefined term ________. arc line plane ray

Explanation:

In geometry, a circle is defined as the set of all points in a plane that are at a given distance from a given point (the center). The concept of a plane is an undefined term in geometry. Arcs, lines, and rays are defined based on other geometric concepts and are not part of the fundamental undefined terms used in the definition of a circle.

Answer:

plane