We know that this triangle is 30-60-90 degree triangle, and the measurements for 30-60-90 triangle is x+2x = [tex] \sqrt[x]{3} [/tex]
X is the base (bottom of the triangle)
2x is the height
[tex] \sqrt[x]{3} [/tex] is the hypotenuse.
Knowing this, I would say the answer is B, because 2x=12, so x=6, so the answer would be [tex] \sqrt[6]{3} [/tex].
Hope this helps!
