Length of Arc
l = (theta/360)*2*pi*r
Definition
Arc length is the fraction of the circumference subtended by the central angle.
Calculator
Arc Length
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cm
Related Formulas
Tangent Perpendicular to Radius
tangent perpendicular radius at point of contact
Area of Sector
A = (theta/360)*pi*r*r
Circumference of Circle
C = 2*pi*r
Study Tools
Question
Length of Arc
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Answer
l = (theta/360)*2*pi*r
Arc length is the fraction of the circumference subtended by the central angle.
Used In
- Circles
Frequently Viewed Together
Area of Circle
A = pi*r*r
Pythagoras Theorem
c*c = a*a + b*b
Quadratic Formula
quadratic formula roots