Okay, so here's the equation: tan 44 = d/950 0.01770469927 (I used a calculator to solve tan 44, so let's just use to the nearest hundredth) 0.02 = d/950 100d = 1900 isolate d: d = 19 19 feet
Comment You have to assume that P is on the coast. You also have to assume that d and the horizontal dotted line defining the 46 degrees are parallel.
Givens The angle of depression = 46 degrees The height of the helicopter = 950 feet.
Formula height helicopter / d = Tan(46)
The thing is that the angle of elevation from P forms an angle with the angle of depression that made 2 alternate interior angles which are equal when two parallel lines and a traversal are given.
The line connecting P and the helicopter is the traversal.
Solution height of helicopter = 950 d = ?? angle = 46o
Tan(46) = 950/d d = 950 / tan(46) d = 950 / 1.03553 d = 917 feet from the island to P <<<<<< answer
