Circle Sector Formulas

Posted In: Mathematics

A circular sector or circle sector (symbol: ⌔), is the portion of a circle enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger is known as the major sector.

Sector of a Circle

Radius: R
Arc length: s
Central angle (in radians): x
Central angle (in degrees): α
Perimeter: L
Area: S

  1. $s=Rx$
  2. $s={πRα}/180°$
  3. $L=s+2R$
  4. $S={Rs}/2={R^2x}/2={πR^2α}/360°$

Post Tags: Geometry

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