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Home >> Circle >> Sector of a Circle >>

Sector of a Circle

Center of circle Radius of circle Diameter of circle Chords of circle Semi-circle
Circumference of circle Interior of circle Exterior of circle Sector of a Circle Segment of a Circle
Area of Circle Arc of Circle

Before you understand Sector of Circle, you are advised to read:

What is Radius of Circle ?
What is Interior of Circle ?
What are Arcs of Circle ?

Definition: Sector is a region which is in the interior of circle. On one side, it is enclosed by two radii and by an arc on the other side.
Or in other words, the region between an arc and two radii is known as Sector of Circle

Sector of Circle is of the following two types:

  • Minor Sector: Minor Arc corresponds to Minor Sector
  • Major Sector: Major Arc corresponds to Major Sector

    Following picture illustrates the distinction between Minor Sector and Major Sector:



    In the above circle with Center O have
  • Two Radii OA and OB.
  • Major Sector (highlighted in pink)
  • Minor Sector (highlighted in yellow)
  • Minor Arc (highlighted with Green)
  • Major Arc (highlighted in red)

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