Definition Of Alternate Interior Angles Theorem
The pair of blue and pink angles denotes alternate interior angles.
Definition of alternate interior angles theorem. Alternate interior angles are the angles formed when a transversal intersects two coplanar lines. The alternate interior angles theorem states that when two parallel lines are cut by a transversal the resulting alternate interior angles are congruent. The transversal crosses through the two lines which are coplanar at separate points.
They lie on the inner side of the parallel lines but the opposite sides of the transversal. The alternate interior angle is formed when a transversal passes through two lines. These pairs are alternate interior angles.
The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles. Alternate interior angles are the angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior angles. The alternate interior angles theorem states that if two parallel lines are cut by a transversal then the pairs of alternate interior angles are congruent.
So in the figure below if k l then 2 8 and 3 5.