Hello, so I have a question that states (these aren't the actual measurements but they are around about the same, I can't remember the exact numbers so I made these up, this way I could apply the same to the actual numbers) an object being 4km above me, 1.4km to the north of me, and 2km to the west of another person. (I know the coordinates north, west, etc. are correct, just made a guess on the numbers) I have to find the angle to the object. So i began for the xyz to begin applying the Pythagorean theorem, so √4^2 + 1.4^2 + 2^2 16 + 1.96 + 4 4.69 But I am not sure where to go from here. I am guessing it would be either cos or sin I use? Thank you for the guidance!