tolong bantu lah..ubahlah sudut 120 drajt kdalam radian dan putaran

[tex]120^\circ= \frac{120 \pi }{180}= \frac{2}{3} \pi~ rad \\ \\ 1~putaran=360^\circ \\ \\ 120^\circ= \frac{120}{360}~putaran \\ \\ 120^\circ= \frac{1}{3}~putaran [/tex]