# Orthogonal Circles

A circle is a locus of all the points that are at a same distance which is measured from a fixed point.

**Orthogonal**is the condition of perpendicularity.So, the circles that cut each other at right angles are known as

**orthogonal circles.**This implies orthogonal circles are perpendicular to each other. When we talk about angles between the circles we actually mean the angles between the tangents to the circle at the point of intersections.