Help trigonometry (angles of evaluation and depression)

Answer:
x ≈ 745.5 ft
Step-by-step explanation:
The angle at the lower right of the triangle is 28° ( alternate angle )
Using the sine ratio in the right triangle
sin28° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{350}{x}[/tex]
Multiply both sides by x
x × sin28° = 350 ( divide both sides by sin28° )
x = [tex]\frac{350}{sin28}[/tex] ≈ 745.5 ft ( to the nearest tenth )