Perimeter Command
From GeoGebra Manual
- Perimeter[Polygon]
- Returns the perimeter of the polygon.
- Perimeter[Conic]
- If the given conic is a circle or ellipse, this command returns its perimeter. Otherwise the result is undefined.
- Perimeter[Locus]
- If the given locus is finite, this command returns its approximate perimeter. Otherwise the result is undefined.