Interior Angles of a Triangle
Measure the size of angles A, B, C.
What is the sum of the angles?[br]A + B + C =
90[math]^\circ[/math]
360[math]^\circ[/math]
180[math]^\circ[/math]
Move the points around to change the shape of the triangle. What do you notice about the sum of the interior angles (A+B+C)?
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Information: Interior Angles of a Triangle