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+ | ====== Glossary of Geometry Terms ====== | ||
+ | [b]area[/b]—the two-dimensional surface included within a set of lines | ||
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+ | [b]axis[/b]—a straight line that divides a shape symmetrically | ||
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+ | [b]circumference[/b]—the outer boundary of a circle | ||
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+ | [b]constant[/b]—a number that in a given mathematical situation doesn’t change | ||
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+ | [b]equilateral[/b]—having all sides of equal length | ||
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+ | [b]irrational number[/b]—a number that can’t be derived from dividing one ordinary whole number into another, and whose decimal continues without end and without repeating sequences | ||
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+ | [b]polygon[/b]—a two-dimensional shape that’s closed (no gaps between lines) and made of straight lines; a [b]regular polygon[/b] is a polygon with all sides of the same length and all angles of equal size | ||
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+ | [b]radius[/b]—a straight line from the center of a circle to its circumference, or from the center of a regular polygon to any of its vertices | ||
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+ | [b]ratio[/b]—the size relationship between two numbers | ||
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+ | [b]square root[/b]—to get the square of a number, multiply it by itself (3 squared = 3 x 3 = 9); the square root of a number is the value that, when squared, gives you that number (the square root of 9 = 3) | ||
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+ | [b]subset[/b]—a smaller group within a larger group: for example, transcendental numbers are a subset of irrational numbers (all transcendental numbers are irrational numbers, but not all irrational numbers are transcendental numbers) | ||
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+ | [b]transcendental number[/b]—a special class of irrational numbers that defy easy mathematical description | ||
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+ | [b]vertex[/b] (plural [b]vertices[/b])—the point at which two straight lines meet | ||
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+ | Back to [[geometry:start|Sacred Geometry]] intro |