Ответ:

\(\theta_{град}=\theta_{рад}\cdot\frac{180^\circ}{\pi}\).

\(\frac\pi3=60^\circ\), \(\frac{3\pi}2=270^\circ\), \(\frac{7\pi}4=315^\circ\), \(\pi=180^\circ\), \(-\frac\pi4=-45^\circ\), \(-3\pi=-540^\circ\).