Выразите в градусной мере величины углов: -7л/12; 5л/4; 0,2л; 5л/9; -11л/18; 2л/3; 0,25л; 1,8 л; 1,1 л; — п/3; -4 л/5; 8 л/9, л/9.

Решение:

1. -7π/12 = -105°
2. 5π/4 = 225°
3. 0.2π = 36°
4. 5π/9 = 100°
5. -11π/18 = -110°
6. 2π/3 = 120°
7. 0.25π = 45°
8. 1.8π = 324°
9. 1.1π = 198°
10. -π/3 = -60°
11. -4π/5 = -144°
12. 8π/9 = 160°
13. π/9 = 20°