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Plug in your calculator, (considering you have one) "2*3.14 (or pi symbol)*9

The equation for this is (2 times pi times radius)

Your answer should be 56.54866776

Rounding to the nearest tenth: 56.5

Nearest hundreth: 56.55

Hope this helped you :D

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13y ago
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Q: What is the circumference of a circle with s ra dius of 9?
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