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Extended Base
In geometry, a base is a Edge (geometry), side of a polygon or a face (geometry), face of a polyhedron, particularly one oriented perpendicular to the direction in which Height#In mathematics, height is measured, or on what is considered to be the "bottom" of the figure. This term is commonly applied in plane geometry to triangles, parallelograms, trapezoids, and in solid geometry to Cylinder (geometry), cylinders, Cone (geometry), cones, Pyramid (geometry), pyramids, parallelepipeds, Prism (geometry), prisms, and frustums. The side or point opposite the base is often called the ''apex (geometry), apex'' or ''summit'' of the shape. Of a triangle In a triangle, any arbitrary side can be considered the ''base''. The two endpoints of the base are called ''base vertices'' and the corresponding angles are called ''base angles''. The third vertex opposite the base is called the ''apex''. The extended base of a triangle (a particular case of an extended side) is the line (geometry), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyramid Coloured Base (geometry)
A pyramid () is a Nonbuilding structure, structure whose visible surfaces are triangular in broad outline and converge toward the top, making the appearance roughly a Pyramid (geometry), pyramid in the geometric sense. The base of a pyramid can be of any polygon shape, such as triangular or quadrilateral, and its surface-lines either filled or stepped. A pyramid has the majority of its mass closer to the ground with less mass towards the pyramidion at the Apex (geometry), apex. This is due to the gradual decrease in the cross-sectional area along the vertical axis with increasing elevation. This offers a weight distribution that allowed early civilizations to create monumental structures.Ancient Civilization, civilizations in many parts of the world pioneered the building of pyramids. The largest pyramid by volume is the Mesoamerican Great Pyramid of Cholula, in the Mexican state of Puebla. For millennia, the List of largest buildings in the world, largest structures on Earth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
