I am having a hard time with this problem, So I know triangle WXZ is isosceles because the sides are the same which means the opposite angles are the same as well.
Now i'm trying to determine similar triangles or congruent triangles and I can tell that triangle WXY and WYZ are congruent but I can't seem to find WY.
I decided to use law of cosines and find angle X and then from there, I decided to use law of sines however, I got WY to be negative which is not possible but the absolute value of that length was very close to choice A.
However, I'm not sure if that is a right procedure. Any ideas on solving this problem?