CCSS.8.G.A.5Grade 8 · Geometry
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
Skills that meet it
3 skills- Angle Relationships with Parallel Lines and TransversalsGrade 8
- Triangle Angle Sum and Exterior AnglesGrade 8
- Angle-Angle Criterion for Triangle SimilarityGrade 8
Standard text is quoted from the Common Core State Standards.