Using Alternate Interior Angles to Find the Missing Measure of an Angle

The video tutorial covers the concept of transversals and their interaction with parallel lines. It explains the definitions and properties of interior and exterior angles, focusing on alternate interior angles. The teacher emphasizes that alternate interior angles are equal when lines are parallel, reinforcing the importance of understanding these geometric principles.

How do alternate interior angles relate to each other when we have parallel lines?

What is the significance of the measure of alternate interior angles being equal?