what is the reference angle of 5pi/4?

Question

anonymous · Answer

http://www.algebra.com/algebra/homework/Trigonometry-basics.faq.question.286551.html :)

anonymous · Answer

The reference angle is the angle used to find the trig value when you draw the triangle in the correct quadrant. 

3pi/4 and 7pi/4 and 5pi/4 all use 45 degree reference angles 

11pi/3 uses a reference angle of 60 degrees. 

Hope this helps..

anonymous · Answer

... you could also used even multiples of $\pi/4$ such as $2 \pi/4=\pi/2~or~90°$, $4 \pi/4=\pi=180°$, $6 \pi/4=3 \pi/2=270°$ and $8 \pi/4=2 \pi=360°$... this will further help to locate the quadrant of $5 \pi/4$...

noelgreco · Answer

The reference angle is the angle to the nearest x-axis.