[size=85] This applet [i][u]sorts[/u][/i] and [i][u]finds[/u][/i] the [i]vertices[/i], [i]surface segments[/i], [i]faces[/i], and [i]volume[/i] of the convex polyhedron and its dual image.[br]To do this, follow these steps:[br]1. Check-Box: "Enter a list of polyhedron coordinates-Insert lists for coloring program" -[b]true[/b] .[br]2. In the Input Box: Enter the list of l1 -list of coordinates and "...and Click!".[br]3. Check-Box: "Polyhedron/Dual"-[b]true[/b] and click on the button: "[i][u]Set →Polyhedron[/u][/i]" to Animate, and then "[i][u]click on!!! -to selection all faces[/u][/i]".[br]4. Check-Box: "Polyhedron/Dual"-[b]false[/b] click on the button: "[i][u]Set → Dua[/u][/i]l" to Animate, and then click on "[i][u]click on!!!- to selection all faces_d[/u][/i]".[br]5. Check-Box: "Enter a list of polyhedron coordinates-Insert lists for coloring program" -[b]false[/b].[br]6. In the buttons: "[i][u]Data[/u][/i]" and "[i][u]d-Data[/u][/i]" enter the required lists.[br][/size]*[size=85]You can find simultaneous work of this and other applets in [url=https://www.geogebra.org/m/wsj6hdrs]https://www.geogebra.org/m/wsj6hdrs[/url] .[/size]