# Circle Sector Calculator

Calculations in the circular sector. A circular sector is formed by a circle and an angle originating from the center. Enter the radius and angle. Then click the “Calculate” button.

.**Circular sector**

**Radius (r)**

**Corner (α)**

**Arc length (l)**

**Perimeter (p)**

**Square (S)**

## Formulas

l = 2 * r * π * α / 360°

p = l + 2 * r

S = r2 * π * α / 360°