Answer
$38 feet $
Work Step by Step
The trigonometric ratios are as follows: $\sin \theta= \dfrac{opposite}{hypotenuse}$ ; $\cos \theta= \dfrac{Adjacent}{hypotenuse}$ and $\tan \theta= \dfrac{Opposite}{Adjacent}$
Let $\theta $ be the angle of elevation.
Now, $\tan \theta= \dfrac{Opposite}{Adjacent}$
This gives: $\tan 25.6^{\circ}= \dfrac{h}{80}$
So, $ h=80 \times \tan 25.6^{\circ} =38 feet $
