An airplane is flying 100 km north and 185 km west of an airport. it is flying at a height of 7 km. what is the angle of elevation of the airplane, from the point of view of the airport?
An airplane is flying 100 km north and 185 km west of an airport. it is flying at a height of 7 km.
what is the angle of elevation of the airplane,
from the point of view of the airport?
\(\begin{array}{|rcll|} \hline \tan{\text{(angle of elevation) } } &=& \frac{7\ \text{km} } { \sqrt{ (100\ \text{km})^2 + (185\ \text{km})^2 } } \\ &=& \frac{7 } { 210.297408448 } \\ &=& 0.03328619241\\ \text{ angle of elevation } &=& \arctan(0.03328619241) \\ &=& 1.90645445031\dots ^{\circ} \\ \hline \end{array} \)
The angle of elevation of the airplane from the point of view of the airport is \(\approx \mathbf{1.9^{\circ}}\)