Solve each problem involving an angle of elevation or depression. See Examples 3 and 4....

Solve each problem involving an angle of elevation or depression. See Examples 3 and 4.

Angle of Elevation of the Pyramid of the Sun The Pyramid of the Sun in the ancient Mexican city of Teotihuacan was the largest and most important structure in the city. The base is a square with sides about 700 ft long, and the height of the pyramid is about 200 ft. Find the angle of elevation of the edge indicated in the figure to two significant digits. (Hint: The base of the triangle in the figure is half the diagonal of the square base of the pyramid.) (Source: www.britannica.com)