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The Oxford Dictionary defines the circle is, “a round plane figure whose boundary (the circumference) is equidistant from a fixed point.” Wikipedia calls it “a simple closed shape.” In his treatise, “The Elements,” Euclid defined it this way: “A circle is a plane figure bounded by one line, and such that all right lines drawn from a certain point within it to the bounding line, are equal. The bounding line is called its circumference and the point, its centre.” Using circles and learning how to calculate values for circles has played an essential part in the evolution of our civilization, from the development of the wheel and the abacus with its round beads to the evolution of modern machinery and mathematics. Here are some basic explanations for calculating the values for the area, … [Read More...] about Math Help – Calculating Basic Values for Circles