More Lessons for Grade 8

Math Worksheets

Videos, worksheets, stories and songs to help Grade 8 students learn about co-interior angles (also called consecutive interior angles, same side interior angles).

The Consecutive Interior Angles Theorem states that if two parallel lines are cut by a transversal, then consecutive interior angles are supplementary (= 180°)

The Consecutive Interior Angles Theorem states that if two parallel lines are cut by a transversal, then each pair of alternate interior angles is congruent.

Parallel lines : Alternate Interior, Corresponding and Co-interior angles

Relationships between Parallel Lines and Interior Angles

Helps describe the angle pairs formed by parallel lines and a transversal. Looks at corresponding, alternate interior and same side interior angles

Learn to prove lines parallel using corresponding and same side interior angles

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