Answer: Choice C
x = sqrt(12)
y = 18
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Triangle TRU is a 30-60-90 triangle
RU = 4 is the hypotenuse
UT = 2 is the short leg and half the hypotenuse
RT = long leg
RT = (short leg)*sqrt(3)
RT = 2*sqrt(3)
x = 2*sqrt(3)
x = sqrt(4)*sqrt(3)
x = sqrt(4*3)
x = sqrt(12)
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Angle TRS is 30 degrees
y+12 = 30
y = 30-12
y = 18
