understang the terms in circle

Basic terms of circles:

Center of the circle:In geometry circles, the fixed point , the fixed point is called the center of the circle.

Radius of a circle:The distance from the fixed point to any point on the circumference of the circle is called the radius.

Concentric circles:Concentric circles are circles drawn from a fixed point.

Chord: A chord is a line that is formed by joining two line of an arc.

Diameter: A diameter is a chord passing through the center of the circle.

I hope this basic terms will be of helpful ones.