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Find missing angles in triangles using the Triangle Angle Sum Theorem and Exterior Angle Theorem.

A worksheet with six geometry problems involving triangles, using the Triangle Angle Sum Theorem and Exterior Angle Theorem to find missing angles, with one image of pyramids and five diagrams of triangles with labeled angles.

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Show Answer Key & Explanations Step-by-step solution for: Finding missing measures using the Triangle Sum Theorem and ...

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- ∠1 = 60°
- ∠x = 113°
- ∠x = 50°, ∠y = 60°
- ∠y = 113°
- ? = 115°
- ∠x = 65°
- ∠x = 35°
- ∠x = 110°, ∠y = 70°

Parent Tip: Review the logic above to help your child master the concept of angle sum theorem worksheet.

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