# Animation 280

- Author:
- Tim Brzezinski

- Topic:
- Congruence, Equilateral Triangles, Triangles

What phenomenon is dynamically being illustrated in the applet below? How would you describe in words? How can we formally prove this true?

- Author:
- Tim Brzezinski

- Topic:
- Congruence, Equilateral Triangles, Triangles

What phenomenon is dynamically being illustrated in the applet below? How would you describe in words? How can we formally prove this true?