SWe have that:
The height of the helicopter is the opposite side of the triangle formed.
How far off the coast to the helicopter is the adjacent side.
Therefore:
[tex]tan48=\frac{opposite}{adjacent}[/tex]
Where:
opposite = 1250 ft
adjacent = d
Substitute the values:
[tex]\tan48=\frac{1250}{d}[/tex]
Solve for d:
[tex]d=\frac{1250}{\tan48}=1125.51[/tex]
Round to the nearest whole number 1126
Answer: d = 1126 ft
