Triangle Angle Sum Exploration
What do you notice? What do you wonder?
How to Use Virtual Manipulatives:
1. To modify the triangle in the Exploration View, drag the vertices.
2. Provided in the toolbox are color-coded virtual angle manipulatives.
2a. To use an angle manipulative, select its vertex and drag it onto the exploration view.
2b. To rotate the angle manipulative, select and drag the diamond point at the end of the ray.
Note: You are provided with six manipulatives (two of each angle). You may use some or all of the manipulatives to prove the Triangle Angle Sum Theorem.