The point P is on the unit circle. The standard angle associated with P is 60°. What...

Question

The point P is on the unit circle. The standard angle associated with P is 60°. What is the x-coordinate of P?

Answer 1

On the Unit Circle, the x coordinate is cosine (theta) and the y coordinate is sin(theta).  Theta is the angle associated with the point (x, y).

 

For point P, the x coordinate is cosine(60) or 1/2.