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a cellular telephone tower that is 150 ft tall is placed on top of a mountain that is 1200 feet above sea level a cellular and selling cell phone user Jesse who is five horizontal miles away from and 40 feet above sea level. What is the angle of depression from the top of the tower to Jesse?

Respuesta :

sqdancefan
We assume a flat earth.

tan(θ) = (difference in height)/(horizontal distance)
.. = (1200 +150 -40)/(5*5280) = 1310/26400 . . . . distances in feet
Then
.. θ = arctan(131/2640) ≈ 2.841°

The angle of depression from the top of the tower is about 2.841°.

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