SOLUTION: Find the reference number of t = 3.3? t = 3.3 Reference number is the shortest arc length from Pt to the x-axis. I know the answer is 3.3 - π Please explain Thank yo

Algebra ->  Trigonometry-basics -> SOLUTION: Find the reference number of t = 3.3? t = 3.3 Reference number is the shortest arc length from Pt to the x-axis. I know the answer is 3.3 - π Please explain Thank yo      Log On


   

Question 918929: Find the reference number of t = 3.3?
t = 3.3
Reference number is the shortest arc length from Pt to the x-axis.
I know the answer is 3.3 - π
Please explain
Thank you
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
for t=3.3, let's look at the unit circle whose center is (0,0)
beginning at point (1,0) we rotate counterclockwise since t>0
reference number for t=3.3 is 3.3 - 3.141592654 = 0.158407346 radians
note that pi = 3.141592654 and t is given in radians