Question

5. What is the value of 8 in the unit circle below?

30°
600
b.
45°
d.
90°

Answer 1

9514 1404 393

Answer:

θ = 60°

Explanation:

The angle is more than 45° and less than 90°. The only viable choice is ...

θ = 60°

__

We can only read the x-coordinate of the point on the terminal ray. It is 1/2, which is the cosine of 60°. The angle must be 60°.