Answer:
6 units
Step-by-step explanation:
In a 30°-60°-90° triangle, the shortest side is half the length of the longest side.
XY = XZ/2 = 12/2
XY = 6
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Alternate solution
The side of interest is opposite the angle. The given side is the hypotenuse. So, the relevant trig relation is ...
Sin = Opposite/Hypotenuse
sin(30°) = XY/12
XY = 12·sin(30°) = 12·(1/2)
XY = 6
