a man is watching a helicopter flying over a house that is 900 ft from him and the angle is 49 degrees. how high is the helicopter?
Sin(49) =Height/900
0.75471=H / 900
H=679.24 feet-the height of the helicopter.
It depends which angle you mean but I think it is the angle between the vertical and the direction that the plane is sited at.
so
cos 49 = height/900
height = 900 cos 49 = 900*cos(49) = 590.4531260919
590 feet.
I assume that the man is 900 ft from the house and the helicopter is directly over this house....so.....the height, h, of the helicopter can be found thusly:
tan (49) = h / 900
h = 900*tan (49) = about 1035.33 ft
