##### This *Angles of a Triangle* lesson plan also includes:

- Angles of a Triangle
- Installing Applications (Apps) Onto Your Graphing Calculator
- Cabri Jr. Guide
- CBIG1301
- CBIG1302
- Activity
- Project
- Vocabulary
- Worksheet
- Join to access all included materials

Learners explore the measures of the angles of a triangle in this geometry lesson. They use Cabri Jr. to investigate the sum of the measures of the interior angles of a triangle, and examine the relationships between the interior and exterior angles of a triangle.

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