Explain, in one sentence, why the x-coordinate is negative while the y-coordinate is…

MATHEMATICS · Subjective · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

Explain, in one sentence, why the x-coordinate is negative while the y-coordinate is positive for the point on the unit circle corresponding to

\theta = 150^{\circ}