A
circular sector or
circle sector (symbol:
⌔), is the portion of a
disk enclosed by two
radii and an
arc, where the smaller
area is known as the minor sector and the larger being the major sector. In the diagram, θ is the
central angle in
radians,
![](http://info.babylon.com/onlinebox.cgi?rt=GetFile&uri=!!ARV6FUJ2JP&type=0&index=4040)
the radius of the circle, and
![](http://info.babylon.com/onlinebox.cgi?rt=GetFile&uri=!!ARV6FUJ2JP&type=0&index=214)
is the arc length of the minor sector.