Angle of elevation and depression May 05, 2017 Objective : Given a right triangle, students will be able to write and use trigonometric ratios to solve in applied problems involving angles of elevation and angles of depression. GSRT.8 Angle of Elevation and Depression Describe angle 1 and angle 2 as they relate to the given situation. A surveyor stands 200ft from a building to measure its height with a 5ft tall theodolite. The angle of elevation to the top of the building is 35 degrees. How tall is the building. Read, Illustrate,Solve ,Explain