[b]In the applet below, a rhombus is shown.[/b] [br][br]What properties of a rhombus are dynamically being illustrated?[br][b][color=#ff00ff]What is the measure of the pink angle?[/color][/b][br]How can you formally prove the dynamics being shown [color=#ff00ff][b](with respect to the pink angle)[/b][/color] at the end?