Interior Angle Sum of a Triangle_Theorem A

[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][br][color=#000000]1) What geometric transformations took place in the applet above?[/color][br][color=#000000]  [/color][br][color=#000000]2) When working with the triangle's interior angles, did any of these transformations [br] change the measures of the [/color][color=#0000ff]blue[/color] [color=#000000]or[/color] [color=#6aa84f]green[/color] [color=#000000]angles?  [br][br]3) From your observations, what is the sum of the measures of the interior angles of[br]    [i]any triangle?  [/i][/color]

Information: Interior Angle Sum of a Triangle_Theorem A