Angle+Polygon

media type="custom" key="8946208"** Goal: Mark all angles in polygon. ** **Lev****el:** 1 ggb, 0 math
 * Credit: ** Daniel Mentrard of the GeoGebra forum, David Cox

**Screencast**

1. After drawing a polygon, select the Angle tool and click anywhere inside the polygon. All interior angles will be marked.
 * Directions **** for any polygon: **

2. When you want to change the number of sides, **first DECREASE number of sides**. All angles will be deleted. 3. Repeat 1 above to get new angles.
 * Directions **** for polygon with slider number of sides: **

media type="custom" key="8946254"
 * DIY:** Click on [[image:reset.png width="14" height="16"]]**Reset** to start over.

media type="custom" key="8946288"
 * Another solution (GGB4)**: Angles are dynamic.