What is the height of the stone face? (Detailed Question Below)

Question

To measure a stone face carved on the side of a​ mountain, two sightings

650

feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is

36°

and the angle of elevation to the top is

39°​,

what is the height of the stone​ face?

Answer 1

Compute height to the top of the face: 650 * tan (36)

Compute height to the bottom of the face: 650 * tan(39)

The difference in the heights to the top and bottom of the face is the height of the face