G eometric figures are widely used in various aspects of people ’ s life, such as patterns on sweaters, shapes of desks and even the shape of a birthday cake. In addition, geometric figures can be seen in the architecture from the ancient time to today. Now, they are still important elements in most architecture in the 21th century. Throughout history, people have made amazing use of geometry to construct various wonderful buildings, such as the Pyramids of Egypt, the pantheon Temple on Greece and col os seum in Rome . B esides these ancient building, there are more new buildings like the new building of CCTV, East Building of the National Gallery of Art, Washington, D.C. and Burj Khalifa Tower, etc.