Instructional Video
Sophia Learning

Sophia: Consecutive Exterior Angles Converse

9th - 10th
This video lesson demonstrates how to determine if two lines are parallel by using the converse of the consecutive-exterior angles theorem. Students can check their understanding with an assessment.
Instructional Video
Sophia Learning

Sophia: Consecutive Exterior Angles Converse

9th - 10th
This video lesson demonstrates how to determine if two lines are parallel by using the converse of the consecutive-exterior angles theorem. Students can check their understanding with an assessment.
Instructional Video
Sophia Learning

Sophia: Supplementary Angles

6th - 8th
This video lesson defines and provides examples of supplementary angles. Students can check their understanding with an assessment. [1:40]
Instructional Video
Loyola University Chicago

Math Flix: Complementary/supplementary Angle Computation

4th - 8th Standards
This QuickTime movie provides an opportunity to learn about computing the total degrees for complementary and supplementary angles. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying...