## consecutive interior angles

### Consecutive interior angles are a pair of angles that are located inside a pair of parallel lines and on the same side of the transversal line that intersects those parallel lines

Consecutive interior angles are a pair of angles that are located inside a pair of parallel lines and on the same side of the transversal line that intersects those parallel lines. Consecutive interior angles lie between the two parallel lines and on the inside of the transversal line.

Specifically, when two parallel lines are intersected by a transversal line, the consecutive interior angles are formed by a pair of angles on the same side of the transversal and between the parallel lines. These angles are not adjacent (next to each other), but rather they share a common vertex point and a common side.

Consecutive interior angles are always congruent, meaning that they have the same measure. This is a result of the corresponding angles theorem, which states that if two parallel lines are intersected by a transversal, then the pairs of consecutive interior angles are congruent. In other words, their measures are equal.

So, if we denote the consecutive interior angles as angle 1 and angle 2, then angle 1 = angle 2.

It is important to note that the concept of consecutive interior angles is applicable only to parallel lines intersected by a transversal. The property of being congruent provides a useful tool for solving various geometry problems involving parallel lines and transversals.

##### More Answers:

Understanding the Corresponding Angles Theorem | Exploring the Relationship Between Angles when Parallel Lines are Intersected by a TransversalExploring the Properties and Applications of Alternate Exterior Angles in Geometry

Understanding the Alternate Interior Angles Theorem | A Helpful Guide for Geometry