Rigid Polygon Tool
From GeoGebra Manual
- Successively select at least three free points which will be the vertices of the polygon. Then, click the first point again in order to close the polygon (see also Rigid Polygon command). The resulting polygon will keep the shape: you can move it and rotate it by moving two vertices.
- Holding down the Alt key when drawing a rigid polygon allows to get angles that are a multiple of 15°.
Note: In the Algebra View, the polygon's area is displayed.
