answer the following questions
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1. 87°, 55°
2. 65°
3. 55°
4. 90° , 90°
5. angles of triangle: 7.5°, 10°, 162.5°
exterior angle : 17.5°
6. 109°
7. 85°
8. 75°, 20°, 85°
2. 65°
3. 55°
4. 90° , 90°
5. angles of triangle: 7.5°, 10°, 162.5°
exterior angle : 17.5°
6. 109°
7. 85°
8. 75°, 20°, 85°
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