Sagot :
Convert radian measure to degree measure
[tex]\[1.)\frac{{12\pi }}{7}rad \to \deg rees = \frac{{12\pi }}{7} \bullet \frac{{180}}{\pi } = \frac{{2160}}{7} = {\rm{308}}{\rm{.57}}^\circ \][/tex]
[tex]\[2.)\frac{\pi }{4}rad \to \deg rees = \frac{\pi }{4} \bullet \frac{{180}}{\pi } = \frac{{180}}{4} = 45^\circ \][/tex]
[tex]\[3.) - \frac{{17\pi }}{2}rad \to \deg rees = - \frac{{17\pi }}{2} \bullet \frac{{180}}{\pi } = - \frac{{3060}}{2} = - 1530^\circ \][/tex]
[tex]\[4.)\frac{\pi }{7}rad \to \deg rees = \frac{\pi }{7} \bullet \frac{{180}}{\pi } = \frac{{180}}{7} = 25.71^\circ \][/tex]
[tex]\[5.) - \frac{{3\pi }}{{19}}rad \to \deg rees = - \frac{{3\pi }}{{19}} \bullet \frac{{180}}{\pi } = - \frac{{540}}{{19}} = - {\rm{28}}{\rm{.42}}^\circ \][/tex]