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The axis of a cone is the straight line passing through the apex about which the cone has a circular symmetry. In common usage in elementary geometry, cones are assumed to be right circular, i.e., with a circle base perpendicular to the axis. [1] If the cone is right circular the intersection of a plane with the lateral surface is a conic section.
The bare term cylinder often refers to a solid cylinder with circular ends perpendicular to the axis, that is, a right circular cylinder, as shown in the figure. The cylindrical surface without the ends is called an open cylinder. The formulae for the surface area and the volume of a right circular cylinder have been known from early antiquity.
The Cono Sur or Lima Sur (South Lima in english) is one of the five areas that make up the Lima Metropolitan Area. It is located in the southern part of the metropolis hence its name. This socioeconomic levels of this district are varied. Most of the population however belongs to the lower and middle classes.
Circular cumulative causation is a theory developed by Swedish economist Gunnar Myrdal who applied it systematically for the first time in 1944 (Myrdal, G. (1944), An American Dilemma: The Negro Problem and Modern Democracy, New York: Harper). It is a multi-causal approach where the core variables and their linkages are delineated.
Rafael Reyes Recto (6 November 1931 – 17 March 2008) was a Filipino former sports shooter. He competed in the 25 metre pistol event at the 1972 Summer Olympics. [2]