Hello!
As we are looking for the opposite side and hypotenuse, we will use the sine.
sin30=1/2
This gives us the equation below.
1/2= 5/x
1/2x=5
x=10
Therefore, x=10.
I hope this helps!
Step-by-step explanation:

Answer:
The answer is x = 12.
Step-by-step explanation:
We can solve this using proportion.

Answer:
4/3
Step-by-step explanation: