Angle Measures

$\rhd$ Conversion of angle measures (5:56) Convert degree measures to radian measures: $45^{\circ}, 90^{\circ}, -450^{\circ}, 500^{\circ}$ .
$\rhd$ Conversion of angle measures (4:21) Convert radian measures to degree measures: $\displaystyle\frac{3\pi}{4}, \displaystyle\frac{7\pi}{6}, -\displaystyle\frac{13\pi}{12},\displaystyle\frac{17\pi}{3}$ .