Animated Model of Polyhedron and its corresponding „dual" transformation. [br] Computer constructions of polyhedrons, whose all vertices lie on a sphere and are defined from the maximum sum (P) of all mutual distances between the vertices. Vertex coordinates for each of the polyhedra were previously calculated using: [url=http://tube.geogebra.org/material/show/id/641903] http://tube.geogebra.org/material/show/id/641903[/url] and [url=http://tube.geogebra.org/material/show/id/647141]http://tube.geogebra.org/material/show/id/647141[/url]