From GeoGebra Manual
- Select two points to create a cube:
- Select two points in the xOy plane to obtain a cube lying on that plane.
- Select two points on the same side of z=c to obtain a cube lying on the plane having z=c as one of its equations.
- Select a plane and two points on this plane, or on a parallel plane, to obtain a cube lying on the last plane.
- Note: See also Cube command.