B is correct.
because this number is around :
2.449489
hope this helps
Here, you do the same as the previous one, keeping in mind that X cuts TW in a 2:1 ratio.

OK so we know that the other side is 12 because the right triangle has to have two sides that add up to the hypotenuse, and I believe it gives you the answer in the question because you are trying to find x which it says x is the angle, and since its a right triangle, it would be 90°