11. Найдите градусную меру дуг: 1) 5π/36; 2) 7π/12; 3) 11π/18; 4) 5π/9; 5) 11π/20; 6) 13π/30; 7) 11π/6; 8) 4π/3.

Переводим радианы в градусы по формуле \(\alpha_{°}=\alpha_{рад}\cdot\frac{180}{\pi}\).

1. \(\frac{5\pi}{36}\cdot\frac{180}{\pi}=25°\).
2. \(\frac{7\pi}{12}\cdot\frac{180}{\pi}=105°\).
3. \(\frac{11\pi}{18}\cdot\frac{180}{\pi}=110°\).
4. \(\frac{5\pi}{9}\cdot\frac{180}{\pi}=100°\).
5. \(\frac{11\pi}{20}\cdot\frac{180}{\pi}=99°\).
6. \(\frac{13\pi}{30}\cdot\frac{180}{\pi}=78°\).
7. \(\frac{11\pi}{6}\cdot\frac{180}{\pi}=330°\).
8. \(\frac{4\pi}{3}\cdot\frac{180}{\pi}=240°\).