The angle of elevation is the angle formed above the horizontal from the observer’s eye up to the object. The angle of elevation can be determined using SOHCAHTOA. The opposite side is the height of an object, the hypotenuse is the line of site and the adjacent side is the horizontal. There are several ways to find the angle of depression, you just need to have at least two known sides and apply which is suited among the rules of SOHCAHTOA