All pictures above are from MATHEMATICS GRADE 9 Learner's Ma In identifying whether the given angle is an angle of elevation or an angle of depression: 1. Identify the horizontal line of sight. Usually, it is the horizontalline in the figure. 2. Identify whether the given object is above or below the horizontal line. 3. If the object is above the horizontal line, then use angle of elevation If the object is below the horizontal line, then use angle of depression 4.​