The correct answer is:
square root 3 over 2, because the angles are complementary.
This is true because \( \sin(60°) \) is equal to \( \cos(30°) \), and since \( \cos(30°) = \frac{\sqrt{3}}{2} \), it follows that \( \sin(60°) = \frac{\sqrt{3}}{2} \).