It would round to 4.19
Hope this helps!
4 or less give it a rest 5 or more raise the score
A = C. Msg if u need more help :3
Trigonometry
You know the hypotenuse and you want to find the opposite therefore you use, sine.
Opposite = 18.79385242
<h2>
Opposite = 18.8 feet</h2>