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"content": "Suppose you want to approximate the perimeter of an ellipse by the perimeter of a circle. Is the better for the radius of the circle to be the arithmetic mean or geometric mean of the semi axes of the ellipse?\n\nhttps://www.johndcook.com/blog/2024/06/19/ellipse-perimeter-approximations/\nhttps://media.mathstodon.xyz/media_attachments/files/112/647/028/662/024/764/original/b9aa9d9f217fe187.png\n",
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