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Angle Sum of a Triangle - 8.2 - Lesson 13

Author: Todd Parks

All 3 Interior Angles of a Triangle = 180 Degrees

Triangle Angle Sum Theorem

IXL

The following link is the IXL target that promotes and solidifies understanding.

http://www.ixl.com/math/geometry/triangle-angle-sum-theorem

Printable Blank Lesson 13

This is a blank copy of our Lesson 13: Angle Sum of a Triangle

Questions #4, #5, and #7

In class examples of using the triangle angle sum theorem. Students constructed an equation for each question in order to find the missing angles degree amount.

Teacher Version

This is the teacher version of Lesson 13.