Alternating Interior Angles

Each pair of these angles are inside the parallel lines and on opposite sides of the transversal.

Alternating interior angles. Based on the position of the angles the alternate angles are classified into two types namely alternate interior angles alternate interior angles are the pair of angles on the inner side of the two parallel lines but on the opposite side of the transversal. Notice that the two alternate interior angles shown are equal in measure if the lines pq and rs are parallel. They are supplementary both angles add up to 180 degrees.

From the above given figure 3 4 5 6 are the alternate interior angles. Use the z test to confirm alternate angles. Try this drag an orange dot at a or b.

If the two lines are parallel then the alternate interior angles are congruent. The angles that are formed on opposite sides of the transversal and inside the two lines are alternate interior. When two lines are crossed by another line called the transversal alternate interior angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.

So there are actually two pairs. When two lines are crossed by another line the transversal a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal are called alternate interior angles. Learn about alternate interior angles.

Alternate interior angles are angles that are on the inside of the two lines and on the opposite sides of the transversal. Alternate angles are angles on opposite sides of the transversal. C and f are alternate interior angles.

24 june learn about alternate corresponding and co interior angles and solve angle problems when working with parallel and intersecting lines.