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Circumference

The circumference is the distance around a closed curve. The circumference of a circle can be calculated using the formulae:
  • circumference = 2 π r
  • circumference = π d
where r is the radius and d is the diameter of the circle, and π (the Greek letter pi) is the constant 3.14159...

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Invention timeline | List of astronomical topics | List of astronomical topics (N-Z) | List of inventions | List of mathematical topics | List of mathematical topics (A-C) | List of mathematics topics | Timeline of general technology | Timeline of invention | Timeline of inventions

 

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Circumference".

 

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