Answer:
x= 12.9 (3 s.f.)
Step-by-step explanation:
Please see attached picture for full solution.
1. Label the hypotenuse, adjacent and opposite side of the triangle.
2. Look at the given information.
3. Decide if you should use sine, cosine or tangent.
sine angle= opp/hyp
cosine angle= adj/hyp
tangent angle= opp/adj
