The angle between two radii stemming fro the same point (Fig. 1).
| Value range | |
| Radians | Degree | |
| 0 < Θ < 2π | 0° < Θ < 360° | |
| Fig. 1. Central Angle schematic | ||
| Formula | |
|---|---|
Convex Central Angle ( | Reflex Central Angle ( |
|
|
| Fig. 2. Convex Central Angle | Fig. 3. Reflex Central Angle |
