Answer:
x =  12 = 8
12 = 8
y =  12 = 4
12 = 4
Let me know if you need some help simplifying the expressions or o the trig side of things
Step-by-step explanation:
I'm not sure if this is full out trig or recognizing special triangles, specifically 30-60-90 triangles.  Of course since one angle is 30 degrees and the other is 90 degrees this is a 30-60-90 triangle.
with 30-60-90 tringles  the basic guide is as follows.
The three legs will be referred to as the hypotenuse, short leg and long leg.  I will use H, S and L.  
H = 2S =  L
L
S = .5H =  L
L
L =  H = S
H = S
If this is trig just break out the unit circle and SOH CAH TOA
So x is the hypotenuse, and y is the short leg and we know the long leg is 12, so we can use that.
to find the hypotenuse knowing the long leg we use H =  L and to find the short leg with the long leg you use S =
L and to find the short leg with the long leg you use S =  L.  now just plug in 12 for L
L.  now just plug in 12 for L