Answer
$$\frac{{11\pi }}{6}{\text{radian}}$$
Work Step by Step
$$\eqalign{
& {330^ \circ } \cr
& {\text{Multiply by }}\frac{\pi }{{180}}{\text{radian}} \cr
& {330^ \circ } = 175\left( {\frac{\pi }{{180}}{\text{radian}}} \right) \cr
& {330^ \circ } = \frac{{330\pi }}{{180}}{\text{radian}} \cr
& {\text{Simplify}} \cr
& {330^ \circ } = \frac{{11\pi }}{6}{\text{radian}} \cr} $$