Ответ:

Используем формулу \(\alpha^\circ=\frac{\alpha\pi}{180}\) рад.

  1. \(120^\circ=\frac{120\pi}{180}=\frac{2\pi}{3}\) рад.
  2. \(210^\circ=\frac{210\pi}{180}=\frac{7\pi}{6}\) рад.
  3. \(220^\circ=\frac{220\pi}{180}=\frac{11\pi}{9}\) рад.
  4. \(150^\circ=\frac{150\pi}{180}=\frac{5\pi}{6}\) рад.
  5. \(300^\circ=\frac{300\pi}{180}=\frac{5\pi}{3}\) рад.
  6. \(315^\circ=\frac{315\pi}{180}=\frac{7\pi}{4}\) рад.
  7. \(765^\circ=\frac{765\pi}{180}=\frac{17\pi}{4}\) рад.
  8. \(675^\circ=\frac{675\pi}{180}=\frac{15\pi}{4}\) рад.