Universidad Simón BolívarID- 2125

Teacher: Magaly Rodríguez

Properties and Shapes

Jone FittGildred Flores

What is the shape?

* Basic Shapes:

- Triangle

-Polygon determinated by three straight lines that cut two by two in three points.

-Classification of the triangles: By the length of its sides:

-Equilateral triangle: three sides of the same length. -Isosceles triangle: two sides of the same length. -Scalene triangle: all sides of different length.

-Classification of the triangles: By the amplitude of their angles:

-Triangle rectangle: Straight inner angle (=90º) - Obtuse-angled triangle: one angle obtuse (>90º) -Acute-angled triangle: three angles equal (<90º)

-Square

-Polygon that have the four equal sides an the four angles (=90º).

-Rectangle

-Polygon that hace four sides equal in pairs.

-Circle

-Geometric place of the points of the place whose distance to another fixed point, called center, is smaller or just as the length of the radius.

Derivative Shapes

Dome

- From semicircle.

- It’s a structural element of architecture that resembles the hollow upper half of a sphere.

- Domes have been constructed from a variety of building materials: stone, wood, brick, concrete, metal, glass and plastic.

Pyramid

- From triangle.

-It’s a building where the other surfaces are triangular and converge at a point.

-Properties: The base of a pyramid can be trilateral, or any polygon shape. The pyramid with square base is a common version.

Cube

-From square.

-It’s a polyhedron of six congruent square faces, one of the so-called Platonic solids.

- Properties: All their faces are parallel sides, and even as a prism of square base and height equal to the side of the base.

Parallelepiped

- From rectangle.

- It´s a polyhedron of six faces, in which all faces are parallelograms, parallel and equal in pairs.

- Its properties are similar to the cube but the only difference is that the height is half of the base.

Fundamental Structural Elements

-Beam

-Is a linear construction element that works mainly in bending. Is usually horizontal.

-Column

-Is a vertical architectonic piece and of extended form that serves, generally, to maintain the weight of the structure

Check this interactive

lab!

www.pbs.org/wgbh/buildingbig/lab/shapes.html