[color=#000000]Interact with the applet below for a few minutes.  [br]Then, answer the questions that follow.  [br][br][/color][i][color=#980000]Be sure to change the locations of the triangle's WHITE VERTICES each time before you drag the slider!!! [/color][/i]

[b][color=#980000]Questions:[/color][/b][br][color=#000000][br]1) From your observations, what is the sum of the measures of the interior angles of[br]    [i]any triangle?  [br][/i][br][/color][color=#000000]2) Altogether, the 3 angles of a triangle form a ____________ ?[i] [br][br]3) Now use this information to work on pages 12 and 13 [/i][/color]