3, Lesson 14, Unit 1, Grade 8, OpenUp icon
Instructional Activity

Cutting Parallel Lines with a Transversal

Lesson 14. Unit 1. Grade 8 Open Up Resources

Open Up Resources15 min(s)

This Instructional Activity is a part of the Lesson 14, Unit 1, Grade 8. In this task, students explore the relationship between angles formed when two parallel lines are cut by a transversal line. Students investigate whether knowing the measure of one angle is su'cient to figure out all the angle measures in this situation. They also consider whether the relationships they found hold true for any two lines cut by a transversal.

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