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<math>L = \sqrt{R^2 - b^2}</math>
<math>
<math>\sqrt{
<math>\frac{1}{\pi R^2} \int_0^R \sqrt{2} \sqrt[4]{R^2 - b^2} \cdot 2\pi b \cdot db</math>
<math>mean of \sqrt{
[[User:Kurzon|Kurzon]] ([[User talk:Kurzon|talk]]) 17:38, 22 September 2024 (UTC)
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