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12 cm Q. What is the circumference of this circle?
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7 votes
7 votes
12 cm Q. What is the circumference of this circle?

User Brandon Bertelsen
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1 Answer

14 votes
14 votes

The circumference is given by:


\begin{gathered} C=2\pi r \\ \text{where:} \\ r=radius=(diameter)/(2) \\ r=(12)/(2)=6 \\ C=2\pi(6)=12\pi \\ C=12\pi \\ or \\ C\approx37.699 \end{gathered}

User Dirk Calloway
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