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The formula for the circumference of a circle is C = 2πr where r is the radius. This formula can also be expressed as C = πd where d is the diameter as the diameter is twice the radius.

C = 15π = 47.12cm (2dp)

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15y ago

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how is that

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Anonymous

4y ago
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Q: What is the circumference of a circle with the diameter of 15cm?
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