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What is the best approximation for the circumfrence of a circle with a diamiter of 400 inches​
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What is the best approximation for the circumfrence of a circle with a diamiter of 400 inches​

User Guz
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\bf \textit{circumference of a circle}\\\\ C=\pi d~~ \begin{cases} d=diameter\\[-0.5em] \hrulefill\\ d=400 \end{cases}\implies C=400\pi \implies C\approx 1256.637

User Matt Messersmith
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