circumference of a circle =
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Answer:
2πr
Step-by-step explanation:
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Answered by
1
Step-by-step explanation:
In geometry, the circumference is the perimeter of a circle or ellipse. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment. More generally, the perimeter is the curve length around any closed figure
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