Investigating Triangle Exterior Angles
- Author:
- Jill Alsman, griffinp
- Topic:
- Angles
Investigating the Exterior Angles of a Triangle.
1. Drag any of the vertices of the triangle around on the screen. What do you observe about the interior angles?
2. Create acute, obtuse and right triangle?
3. Record the measurements of the adjacent angles at point C.
4. What do you observe about the adjacent angles at point C?
5. Write a general equation about the adjacent angles at point C.
6. Record the measurements of marked exterior angle and the other interior angles.
7. What do you notice the relationship with the marked exterior angle and the other interior angles?
8. Write a general equation about the marked exterior angle and the other interior angles.