Asked by n
1. From a point 1000 feet away, along level ground, the angle of elevation of the Pine City Obelisk is 10 degrees. How tall is the obelisk?
2. After it takes off, a plane travels a distance of 3000 feet to rise to a height of 400 feet. At what angle from the ground did it take off?
2. After it takes off, a plane travels a distance of 3000 feet to rise to a height of 400 feet. At what angle from the ground did it take off?
Answers
Answered by
oobleck
#1. As always, draw a diagram, and review your basic trig functions.
h/1000 = tan10°
#2. sinθ = 400/3000
h/1000 = tan10°
#2. sinθ = 400/3000
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