Triangle Angle Theorems

[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]
From your observations, what is the sum of the measures of the interior angles of any triangle?
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– Sarah Khaled, Tim Brzezinski

Information: Triangle Angle Theorems