Using a 30-60-90 triangle, if b = 12, find c?

I can't seem to get any formulas to work for this. any help would be wonderful.

2 answers

In a 30-60-90 triangle, the shortest side is half the longest side, because sin(30°)=1/2.

We do not know what a,b and c stand for, namely which one is hypotenuse.
C is hypotenuse