Question 976167
The triangle has a hypotenuse of 6 km.
The angle of 14 degrees is the angle from the start and describes the opposite side.  The sine of the angle 14 degrees= opposite over hypotenuse.  That is the vertical gain you make.

sin 14=0.2419
sin14=x/hypotenuse=x/6
x=6 sin 14=1.452 km or 1452 meters.

To check, sin 30 is 1/2, so the answer has to be significantly less than 3 km.