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Circumference of a circle is measure with the formula: C = 2*pi*r where C is the Circumference, and r is the radius.
Hence, the circumference of a circle with radius 4 m would be: C = 2*pi*4 = 8*pi
Rounded to 2 decimal places, this comes to 25.13 m .
Hope this Helps.
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∙ 12y ago
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