Free teaching resource

Finding the Angle Sum of a Triangle Worksheet

Teach Starter Publishing
PDF | 2 pages | Grades: 6 - 7

A worksheet to reinforce your students' understanding of the angle sum of a triangle.

Use this worksheet when learning about the angle sum of triangles.

An answer key is included in the download.

Use in conjunction with 



  • Math 6.8(A)

    Extend previous knowledge of triangles and their properties to include the sum of angles of a triangle, the relationship between the lengths of sides and measures of angles in a triangle, and determining when three lengths form a triangle;

  • Math 7.11(C)

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