Exploring the Converse of the Pythagorean Theorem
Directions
Move points A and B to change the triangle into an acute, right, or obtuse triangle. Create two acute triangles and two obtuse triangles. Watch what happens to the relationship of a² + b² versus c². 
Jerel L. Welker, Matt James
Lincoln Southwest HS
Lincoln, NE 
jwelker@lps.org, mjames2@lps.org