Arc Length Calculator
Calculate the arc length and sector area given the radius and central angle in degrees. Instant results with step-by-step formulas.
How to Use the Arc Length Calculator
- Enter the required dimensions (length, width, radius, height, etc.).
- The area, volume, or other geometric value is computed instantly.
- Review the result along with the formula used.
- Adjust dimensions to compare different scenarios.
Cas d'utilisation
- •Calculating dimensions for home improvement or DIY projects.
- •Solving geometry problems for school or professional exams.
- •Estimating material quantities needed for construction work.
- •Planning layouts and designs with precise measurements.
Formule
Formula: L = (π × r × θ) / 180. Sector area: S = (π × r² × θ) / 360.
Questions fréquemment posées
How do you calculate arc length?
Use L = (π × r × θ) / 180, where r is the radius and θ is the central angle in degrees.
How do you find the sector area?
Use S = (π × r² × θ) / 360, where r is the radius and θ is the central angle in degrees.
What is the arc length if the angle is 360°?
If θ = 360°, the arc length equals the full circumference: L = 2πr.
Can I use radians instead of degrees?
This calculator uses degrees. In radians, arc length is simply L = r × θ.