The empire state building is 1250 ft.tall.what is the angle of elevation of the top from a point on the ground 1mile(5280 ft.)from the base of the building?
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Multiply 88 ft / sec by 1 mi / 5280 ft to get 88 ft*mi / 5280 ft*sec. 88 / 5280 is 1 / 60 and ft*mi / ft*sec is mi / sec so it simplifies to 1 mi / 60 sec.
Multiply 1 mi / 60 sec by 3600 sec / 1 hr to get 3600 mi*sec / 60 sec*hr. 3600 / 60 is 60 and mi*sec / sec*hr is mi / hr so it simplifies to 60 mi / hr or 60 mph.
A = your location
B = bottom of the hill
C = bottom of the antenna
D = top of the antenna
The A-B distance is constant.
The B-C distance is unknown.
The B-C-D distance is unknown.
The C-D distance is given.
The C-A-B angle is given as 25 degrees.
The D-A-C angle is given as 1.5 degrees.
Use SINE and COSINE functions to determine the B-C distance.
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