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?
#1. As always, draw a diagram, and review your basic trig functions.
h/1000 = tan10°
#2. sinθ = 400/3000