Geometry
8.G.A.5
8th Grade · Common Core Standards
Standard
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.
Study materials
Study guide, practice problems, review, and practice test for this standard.
- Study GuideComing soon
- Practice ProblemsComing soon
- ReviewComing soon
- Practice TestComing soon
- Answer keyComing soon
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