Leon wants to estimate the height of a building. Leon's eyes are 6 feet above ground. He stands 25 feet from the building and sights the top of the building at a 77° angle of elevation. What is the building's height to the nearest tenth of a foot?
Use tan 77 tan 77 = opp/adj in the is example opp = height of building (but you must add Leon's 6 ft height to the result) and adj is the distanc from the building (given as 25 feet)