Answer:
I think the answer would be Consecutive Interior Angles/Transversal
Explanation:
When two lines are cut by a transversal, the pair of angles on one side of the transversal and inside the two lines are called the consecutive interior angles.
When two lines are crossed by another line (which is called the Transversal), the pairs of angles:
• on one side of the transversal
• but inside the two lines
are called Consecutive Interior Angles.
When the two lines are parallel, any pair of Consecutive Interior Angles add to 180 degrees.
Hope this helps!