Interactive Exercise on the Sum of Interior Angles of a Triangle

2020-04-18 12:22
This GeoGebra applet demonstrates and provides exercises for the theorem of the sum of interior angles of a triangle. By constructing a triangle and its three interior angles, users can intuitively observe and measure the degrees of each angle. Interactive input boxes and buttons allow users to verify that the sum of the interior angles is always 180 degrees. Combining geometric construction with