Heights from angles

You will write three functions that find a height from an angle, and then use them on a real-sized problem.

The idea. With the angle of elevation $\theta$ and the ground distance $d$, the height is $d \tan \theta$. With a slanting length $L$, the height is $L \sin \theta$. An eye above the ground adds its own height.

Your tasks.

1. In tower_height, return the height from the ground distance and the angle in degrees.
2. In tree_height, do the same, then add the height of the observer's eye.
3. In kite_height, return the height of a kite from the string length and the angle with the ground.