Answer:
Step-by-step explanation:
AB = altitude = 2.7 miles
BC = 8.3 miles
[tex]\sf tan \ \theta = \dfrac{opposite \ side \ of \ \theta}{adjacent \ side \ of \ \theta}\\\\Tan \ \theta = \dfrac{AB}{BC}=\dfrac{2.7}{8.3}\\\\Tan \ \theta = 0.33\\\\\theta = tan^{-1} \ 0.33[/tex]
[tex]\boxed{\theta = 18.3}[/tex]