To approach a runway, a plane must begin a 7° descent starting from a height of 2 miles above the ground. To the nearest mile, how many miles from the runway is the airplane at the start of this approach?
here is an image of the work. if you are trying to find it from the ground level the (x) would be at the bottom and you would use Tan angle= opposite side over adj. side. then you would either divide or multiply, but in this case divide.