Relationship between Angles in Parallel Lines

Consider a transversal line that intersects two parallel lines. Let the angles formed be defined as follows:

• Angle 1: An exterior angle on the top left side
• Angle 2: An interior angle on the bottom left side
• Angle 3: An interior angle on the bottom right side
• Angle 4: An exterior angle on the top right side

If the measure of Angle 1 is $x$ degrees, then based on the properties of parallel lines cut by a transversal, which of the following statements is true regarding the relationship between the measures of Angle 2 and Angle 3?