Trigonometry

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Which is a $\cfrac{2\pi}{3}$ radian angle on the Unit Circle?

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Which of the following points represents an angle of $\cfrac{2\pi}{3}$ radians on the Unit Circle?

A

$(-1, 0)$

B

$(-\cfrac{\sqrt{3}}{2}, \cfrac{1}{2})$

C

$(-\cfrac{\sqrt{2}}{2}, \cfrac{\sqrt{2}}{2})$

D

$(-\cfrac{1}{2}, \cfrac{\sqrt{3}}{2})$