[color=#000000]In the applet (with white background) below, use the tools of GeoGebra to construct a quadrilateral that [b]ALWAYS remains a rectangle. [/b] [br][br][/color][color=#000000]Make sure the [/color][color=#ff00ff][b]angles STAY right angles[/b][/color][color=#000000] as you move any vertex (or vertices) around. [br]Be sure your construction reflects this same dynamic behavior. [br] [br]Color matching is not necessary. [/color]