Ответ:

Формула

n° = πn° / 180°

1. π*60 / 180 = π/3

2. π*120 / 180 = 2π/3

3. π*150 / 180 = 5π / 6

4. π*225 / 180 = 5π / 4

5. π*240 / 180 = 7π / 6

6. π*300 / 180 = 5π / 3

7. π*345 / 180 = 23π / 12