# Area and the Rhind Papyrus

 January 09, 2019 05:13AM Registered: 4 years ago Posts: 169
I’ve reported elsewhere my suggestion that the circle area formula in the Rhind Papyrus (deduct one-ninth from the diameter and square the result) may well derive from squaring the circle using 256/81 as pi.

What then becomes apparent is that this could be a key to the formula (pi.r) squared. Take any diameter, perform the calculation and divide the answer by pi as 256/81:

Need I go on? I imagine it possible that someone would have seen the significance of this, and all that’s missing now is naysayers demanding proof.
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gjb 1022 January 09, 2019 05:13AM

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engbren 233 January 09, 2019 06:03AM

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gjb 222 January 09, 2019 06:10AM

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engbren 191 January 09, 2019 06:30AM

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DavidK 224 January 09, 2019 10:06AM

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gjb 198 January 09, 2019 01:32PM

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Sirfiroth 203 January 09, 2019 03:04PM

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DavidK 183 January 09, 2019 08:02PM

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Sirfiroth 177 January 09, 2019 09:06PM

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engbren 225 January 10, 2019 02:02AM

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Sirfiroth 196 January 10, 2019 04:15AM

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engbren 234 January 10, 2019 05:53AM

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engbren 201 January 15, 2019 04:50AM

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Lee McGiffen 212 January 10, 2019 10:56AM

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Scott Creighton 249 January 10, 2019 12:33PM

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Martin Stower 242 January 12, 2019 06:23PM

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Warwick 160 January 14, 2019 09:04PM

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DavidK 209 January 10, 2019 01:57PM

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Scott Creighton 244 January 10, 2019 02:16PM

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DavidK 228 January 10, 2019 05:10PM

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Sirfiroth 326 January 10, 2019 05:58PM

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engbren 214 January 16, 2019 10:24AM

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gjb 219 January 18, 2019 11:28PM

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DavidK 229 January 19, 2019 12:28AM

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engbren 229 February 06, 2019 12:56PM

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