A farmer needs to enclose a field within the area of a sprinkler. The radius of the sprinkler is 4 meters. Determine the dimensions of the field that will enclose the largest and smallest areas.

Instructions:[br][list][br][*]Drag the slider to or use the 'Show Animation' and 'Stop Animation' Buttons to change the dimensions of the field.[br][*]Click the check box 'Show Area' to show or hide the calculated area. [br][/list]