Enter the arc length and radius into the calculator to evaluate and determine the central angle of the circle contained in that arc.

## Central Angle Formula

The following equation is used to calculate a central angle contained by a circular arc.

C = L / r

- Where C is the central angle in radians
- L is the arc length
- r is the radius

## FAQ

**What is a central angle?**

A central angle is an angle contained by a portion of an arc defined by an arc length and radius. It’s sometime referred to as the angel of rotation of an arc.

**What is an arc length?**

An arc length is the measure of the distance along an arc contained by a radius and angle.

## Related Terms

central angle calculator |

central angle formula |

how to calculate central angle |

how to find central angle |

find the radian measure of the central angle |

how to find the central angle of a circle |

how to find the central angle of a sector |

central angle of a circle formula |

how to find the radius of a sector with the area and angle |

find central angle |

how to find the measure of a central angle |

find the length of the arc intercepted by a central angle |

how to find the central angle of a circle given the radius |

how to find the radian measure of the central angle |

how to find sector angle |

how to find radius with arc length and central angle |

how to find the central angle of a polygon |

how to find radian measure of central angle |

find the measure of the central angle |

how to find central angle without arc length |

find the length of an arc intercepted by a central angle |

central angle of a circle calculator |

how to calculate sector angle |

how to find arc length of a circle without central angle |

how to find the circumference of a circle with arc length and central angle |

formula to find central angle of a pie chart |

find the radian measure of the central angle of a circle |

how to find a minor arc |

arc area formula radians |

find the length of an arc that subtends a central angle |

measure of central angle formula |

find area of sector with radius and central angle |

how do you find the central angle of a circle |

formula to find central angle |

how to find the minor arc of a circle |

how to find central angle of circle |

arc length and central angle measure calculator |

finding the central angle of a circle |

how to find the central angle of a regular polygon |

central angle measure formula |

finding the radius of a circle with arc length and central angle |

how to find the sector angle |

how to find central angle in degrees |

circle central angle formula |

how to find minor arc of a circle |

how to find a central angle of a circle |

how do you find a central angle |

central angle formula in degrees |

how to find the area of a sector of a circle with radius and central angle |

measure of central angle calculator |

the formula for the area of a sector with a central angle in radians is |

find radian measure with radius and arc length |

how to calculate the central angle |

equation for central angle |

find the area of a sector with a central angle |

how to find the measure of a central angle of a regular polygon |

find central angle of a circle |

find the area of the sector of a circle given radius and central angle |

finding central angle given arc length |

central angle of circle formula |

how to find central angle formula |

find the radius of a circle given central angle and arc |