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Triangle Sum Theorem & Exterior Angles Geometry Worksheet + Answer Key - Free Printable

Educational worksheet: Triangle Sum Theorem & Exterior Angles Geometry Worksheet + Answer Key. Download and print for classroom or home learning activities.

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1. 70°
2. 50°
3. 65°
4. 80°
5. 55°, 55°
6. 110°
7. 60°, 60°
8. 30°
9. x = 40°, y = 60°
10. x = 50°, y = 60°

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

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