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Angle Sums and Exterior Angles of Triangles

Core Standard: 8.G.A.5

Aligned To Common Core Standard:

Grade 8 Geometry- 8.G.A.5

Printable Worksheets And Lessons

AnswersAnswer Keys

View Answer Keys- All the answer keys in one file.

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Homework Sheets

A unique set of problems that are all about finding that missing angle.

Practice Worksheets

This skill has made its way into every single assessment we have seen on this grade level, since the core curriculum was adopted.

Math Skill Quizzes

Special note: Make sure that students realize that these angles are not drawn to scale.