2.  Introduction  Shapes in Architecture and its properties. - Sphere. - Pyramid. - Cube. - Parallelepiped. - Cone. - Cylinder.  Conlusion.

3.  Which are the most importants shapes used in architecture?

4.  Sphere: - Perfectly round geometrical object in three- dimensional space. - Completely symmetrical around its center. Benefits of the Sphere: - It provides a structure which eliminates tensile stresses in spanning an open space. - All the forces are resolved into compressive stresses. - This is useful. Panteon in Roma

5.  Pyramid: - Is a polyhedron formed by connecting a polygonal base and a point, called the apex. - Each base edge and apex forms a triangle. - It is a conic solid with polygonal base. Benefits of the Pyramid: - It can be accomplished much tallness in the building without a complex structure. Egyptian Pyramids

6.  Cone: - Three-dimensional geometric shape that tapers smoothly from a flat, usually circular base to a point called the apex or vertex. - Types of cones: Right circular and Oblique. Benefits of the Cone: - Less weight over the rest of the structure. - It is really helpful in regions where climate is harsh. Metropolitan Cathedral in Rio de Janeiro

7.  Parallelepiped: - Three-dimensional figure formed by six parallelograms. Structural elements: “U” beams, “I” beams, regular beams. Benefits of the Parallelepiped: - Is easier to combine with other shapes and it’s also easier to solve in terms of structure and construction. Pabellon de Barcelona in Spain

8.  Cube: - Three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. Benefits of the Cube: - Is a very primitive from. - Great comprehension of this form. Carlo Santambrogio Milano y Ennio Arosio House of Glass.

9.  Cylinder: - Is one of the most basic curvilinear geometric shapes. - The surface formed by the points at a fixed distance from a given straigth line, the axis of the cylinder. - Any ruled surface spanned by a one-parameter family of parallel lines. Benefits of the Cylinder: - In columns: circular base permit a better performance and resistance. - It allows a better flow all over the space. - In buildings: it allows nice panoramic views that cover all exterior scenery. Humboldt Hotel in Caracas

10.  The meaning and purpose of architecture has changed trough the passing of time, but it has always been the intention of protecting the human being from external situations. This intention requires a three- dimensional built space that can only be referred to three-dimensional shapes and forms. *With evolution of architecture came the concept of beauty and it was important for people that the form of the buildings where in harmony. Is true that the shapes that we shared with you are not the only shapes that exist, but despite the limited forms and shapes that are available to create our designs, there are infinites forms that we can came up by mixing them into functional, beautiful and stable buildings and constructions.