👉 The term "concentric" is often used in mathematics and geometry to describe a shape that has two or more points that are centered around another point. These points are known as centers, and they can be thought of as the "centers" of the shapes they form. For example, if you have two concentric circles with a common center, one at the top and the other at the bottom, then the radius of each circle is called its "concentric radius," and it is