**Answer:-** A **Circle** is a geometric shape which is precisely defined using the undefined terms point and plane.

**Explanation:-**

There are three undefined terms in geometry 1) point 2) line 3) plane.

A circle is a geometric shape consists of set of infinite points in a plane that are equidistant from a particular point which is called the center of the circle.

Thus the only undefined terms necessary to define a circle are point and plane.