pls tell me what are sectors and arc pls show in a diagram (kind of drawing or picture)Don't send any link

Dear student
 

The area enclosed by the circle is divided into two regions, OAB and OACB.

These regions are called sectors of the circle. A sector is a part of a circle between two radii and the arc of the circle.

An arc is a continuos piece of a circle. An arc is a portion of a circle.

In the given figure, A and B are two points on the circle. The portion of circle between A and B is the arc of the circle.
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