Find the Exact Value of a Trig Function

Find the exact value of trig functions in this easy five step process. 1. draw the angle 2. draw the reference angle 3. draw the reference triangle 4. put in the negatives 5. What is the function

[DonPancho]

very nice as a last minute refresher, thanks man!

[RP]

How would you do this same problem but with a non 30, 60, 90 or 45, 45, 90 triangle? The problem I am dealing with doesn't fit into that since it is sin22.5.

[ErdemtugsC]

How to find values of
trig function(not divisible by 15)

[darKEmbler]

how do you know that the sides were -square root 3 and 1

[Opento]

Is this not a unit circle? Shouldn't the radius be 1?