There are three types of circles, and they are as follows: 

• Tangent Circles: when two or more circles intersect each other at one point, then these circles are termed Tangent Circles

• Concentric Circles: when two or more circles have the same centre but different radii, then such circles can be called Concentric Circles

• Congruent Circles: when two or more circles have the same radii but different centres, these Circles are termed Congruent Circles.