Definition : A Circle is a closed figure. Circle is not bounded by straight line segment while it is bounded by a Curved Line.
or
Circle is a circular path which is always of the same distance from its centre
Following figures represent circle.
Other topic covered here are as follows :
Centre of Circle
Radius of Circle
Diameter of Circle
Chords of Circle
Semicircle
Circumference of Circle
Interior of Circle
Exterior of Circle
Sector of a Circle
Segment of a Circle

