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Concentric


Two geometric figures are said to be concentric if their centers coincide. The region between two concentric circles is called an annulus.

The following table summarizes some concentric central circles.


See also

Annulus, Central Circle, Concentric Circles, Concyclic, Eccentric

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Cite this as:

Weisstein, Eric W. "Concentric." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Concentric.html

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