30 60 90 right triangle
Ratio of short leg : long leg :hypotenuse = a : a√3 : 2a (a = short leg)
Given : hypotenuse = 6
so short leg = 1/2 (hypotenuse) = 1/2(6) = 3
long leg = 3√3
Answer: D. 3
In case you need to find x, answer of x = 3√3