PLEASE HELP!!!!!!!!!!

Answer:
10.4 yd
Step-by-step explanation:
This is a 30° 60° 90° special triangle and the side lengths would be x x√3 2x
If the side length that sees 60° angle şs equal to 18 yd then the angle that sees 30° would be
18 ÷ √3 = 6√3 and that is approximately 10.4 yd