Alternate Interior Angles - Transversals

The video tutorial explains how to determine the measures of angles formed by two parallel lines intersected by a transversal. It covers the concepts of vertical angles, alternate interior angles, and supplementary angles, using a problem where one angle is given as 135 degrees. The tutorial demonstrates how to identify all angles as either 135 or 45 degrees, emphasizing the properties of parallel lines and transversals.

What does it mean for two lines to be parallel?

If one angle is 135 degrees, what are the possible measures of the angles formed with it?

Explain the relationship between vertical angles and alternate interior angles.

How can you determine the measure of an angle if you know its supplementary angle?

Describe the significance of the angles being 45 degrees and 135 degrees in the context of parallel lines.