1. Construct 3 polygons which can be filled with 9 of already formed polygons. [icon]/images/ggb/toolbar/mode_polygon.png[/icon][br][br]2. Construct 3 more texts one will connected with the number a, other one with b and last one with c.[br][br]3. Contruct a sign box with is connected with formed 3 text boxes.[icon]/images/ggb/toolbar/mode_showcheckbox.png[/icon]