Triangle Sum Theorem
To investigate: Click and drag the vertices of the triangle.
Complete the following steps/questions.
1) Click and drag the vertices forming an acute triangle.
2) Record the interior angle measures of the triangle.
3) Write an equation relating the interior angle measure.
4) Repeat steps 2 and 3 for a right and obtuse triangle.
5) What do you observe about the triangle's 3 interior angles?
6) Does the Triangle Sum Theorem hold true for each case? Why or why not?