Angles on Parallel Lines

Author:
Ben Graber
Topic:
Angles
Lines FB and CH are parallel. Line EG, called a transversal, intersects both of these lines. Use the applet below to explore the relationships between the angles created by the transversal.
1. What relationship do you observe between vertical angles (such as α and p)? 2. What relationship do you observe between adjacent angles (such as α and β)? 3. What relationship do you notice between corresponding angles (such as α and δ)? 4. What relationship do you notice between alternate interior angles (such as p and δ)?