[color=#000000]Interact with the applet below for a few minutes.  [br]Then, answer the questions that follow.  [br][br]Be sure to change the locations of the quadrilateral's [b]BIG BLACK VERTICES[/b] each time [i]before[/i] you drag the slider!!! [br][br]Note: [i]M[sub]1, [/sub][/i][i]M[sub]2, [/sub][/i][i]M[sub]3, [/sub]&[/i] [i]M[sub]4 [/sub]serve as midpoints of the sides of this quadrilateral. [/i][/color]

[b][color=#980000]Questions:[/color][/b][br][br][color=#000000]1) What happened when you dragged the black vertices?[/color][color=#000000][br][br]2) When you dragged the slider to the other end, what happened? [br][br]3) From your observations, what is the sum of the measures of the interior angles of[br]    [i]any quadrilateral?  [br][/i][br]4) Select Exterior Angles. What happened when you dragged the vertices?[br][br]5) When you dragged the slider to the other end, what happened?[br][br][/color][color=#000000]6) From your observations, what is the sum of the measures of the exterior angles of[br]    [i]any quadrilateral?  [/i][/color]