$\"\"$

Observe the figure:

One of the triangle side is $\"\"$ .

The angle are $\"\"$ and $\"\"$ .

From problem number: 39, the distance between $\"\"$ and $\"\"$ is $\"\"$ units.

Redraw the figure using the $\"\"$ .

$\"\"$

Law of sines: $\"\"$ .

Consider $\"\"$ .

Substitute the corresponding values.

$\"\"$

The height of the mountain is $\"\"$ .

$\"\"$

The height of the mountain $\"\"$ is $\"\"$ .