# Part 1: Observe and Conjecture

- Author:
- Aaron Dankman

__Observe__
Precisely and completely describe the relationship between line f and line f'.

## Play with the applet below, then respond to the prompt that follows.

__Conjecture
__In geometry when we think something is true but haven't proven it yet, we call it a conjecture.
Consider angle AEA'. What do you think its relationship is to angle BAE and angle B'A'E? Write a conjecture.