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LESSON SET
Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so. Created by Sarah Peterson
  • 8.G.A.5
LESSON

Find the measurements of corresponding angles

In this lesson, you will learn how to find the measurements of angles created when parallel lines are cut by a transversal by using corresponding angles. Created by Sarah Peterson
  • 8.G.A.5
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