P and Q are both points on the unit circle. The standard angle...

Question

P and Q are both points on the unit circle. The standard angle of P is 45° and the standard
angle of Q is 150°. Find the length of the chord PQ. Round your answer to 2 decimal places.

Answer 1

P = (cos45°, sin45°) = (√2/2, √2/2)

 

Q = (cos150°, sin150°) = (-√3/2, 1/2)

 

Now, use the distance formula to find the distance between P and Q.