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t. e. In geometry, the circumference (from Latin circumferens, meaning "carrying around") is the perimeter of a circle or ellipse. [ 1] The circumference is the arc length of the circle, as if it were opened up and straightened out to a line segment. [ 2] More generally, the perimeter is the curve length around any closed figure.
The circle is the closed curve of least perimeter that encloses the maximum area. This is known as the isoperimetric inequality, which states that if a rectifiable Jordan curve in the Euclidean plane has perimeter C and encloses an area A (by the Jordan curve theorem) then.
The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.
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episodes. Person of Interest is an American science fiction crime drama television series created by Jonathan Nolan, who serves as an executive producer alongside J. J. Abrams, Bryan Burk, Chris Fisher, Greg Plageman, and Denise Thé. [ 1] The series premiered on CBS on September 22, 2011, and stars Jim Caviezel as John Reese, a former CIA ...
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