Polygon Exterior Angle Calculator
Compute the exterior angle of a regular polygon by dividing 360° by the number of sides.
Assumes a regular polygon.
Examples
- n = 6 ⇒ 60°
- n = 8 ⇒ 45°
FAQ
What is an exterior angle?
It's the angle formed by one side of a polygon and the extension of an adjacent side.
Do the exterior angles sum to 360°?
Yes, for any polygon the exterior angles sum to 360°.
Does this work for irregular polygons?
No, the formula applies only to regular polygons.
How about interior angles?
Interior angle = 180° - exterior angle.
Additional Information
- Exterior angle = 360 degrees divided by the number of sides of a regular polygon.
- Interior angle equals 180 degrees minus the exterior angle.
- As side count increases, each exterior angle decreases toward 0 degrees.