Sector

A sector is a part of a circle with:

Every circle with a sector will have two sectors:

Minor sector

The smallest sector of a circle, and it contains the minor arc.

It has an angle of less than \pi radians (less than half the circle).

The largest sector of a circle, and it contains the major arc.

It has an angle of more than \pi radians (more than half the circle).

Question	Answer
What is a sector of a circle?	A part of a circle with two edges being the circle’s radius and the other edge being an arc.
How many sectors does every circle have?	Every circle has two sectors.
What is a minor sector?	The smallest sector of a circle, containing the minor arc, with an angle of less than \pi radians (less than half the circle).
What is a major sector?	The largest sector of a circle, containing the major arc, with an angle of more than \pi radians (more than half the circle).