#1184: Circumference Formula
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Circumference of a circle: 2*pi*r [[r has a 2 in superscript]] [[footnote 2]] The circle's radius
Title text:Assume r' refers to the radius of Earth Prime, and r'' means radius in inches.
Circumference of a circle: 2*pi*r [[r has a 2 in superscript]] [[footnote 2]] The circle's radius
Title text:Assume r' refers to the radius of Earth Prime, and r'' means radius in inches.