Find the missing side

Answer:
4) d
5) a
Step-by-step explanation:
4)
Well we know we use sine when we need or have the hypotenuse or opposite side length.
X in this case is the opposite side length so.
Sin59=x/17
x=17sin(59)
x=14.5718
So the answer is d.
5)
We have the adjacent side length and we need opposite side length so use tan
tan(53)=x/12
x=12tan(53)
x=15.9245
Thus answer is a