Interior and Exterior Angles
- Author:
- Shawn Godin
- Topic:
- Angles
In any polygon, the angles "inside" the polygon are called interior angles.
If we extend any side beyond a vertex, the angle formed by this new segment and the adjacent side is called an exterior angle.
In the sketch below you can move any of the vertices of .
If you click on any of the red interior angles, you will see one of the associated exterior angles and the relationship between the exterior and interior angles.