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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.

Subject Views Written By Posted
Area and the Rhind Papyrus 984 gjb 09-Jan-19 05:13
Re: Area and the Rhind Papyrus 210 engbren 09-Jan-19 06:03
Re: Area and the Rhind Papyrus 199 gjb 09-Jan-19 06:10
Re: Area and the Rhind Papyrus 172 engbren 09-Jan-19 06:30
Re: Area and the Rhind Papyrus 206 DavidK 09-Jan-19 10:06
Re: Area and the Rhind Papyrus 176 gjb 09-Jan-19 13:32
Re: Area and the Rhind Papyrus 182 Sirfiroth 09-Jan-19 15:04
Re: Area and the Rhind Papyrus 162 DavidK 09-Jan-19 20:02
Re: Area and the Rhind Papyrus 159 Sirfiroth 09-Jan-19 21:06
Re: Area and the Rhind Papyrus 202 engbren 10-Jan-19 02:02
Re: Area and the Rhind Papyrus 177 Sirfiroth 10-Jan-19 04:15
Re: Area and the Rhind Papyrus 206 engbren 10-Jan-19 05:53
Re: Area and the Rhind Papyrus 179 engbren 15-Jan-19 04:50
Re: Area and the Rhind Papyrus 189 Lee McGiffen 10-Jan-19 10:56
Re: Area and the Rhind Papyrus 230 Scott Creighton 10-Jan-19 12:33
Re: Area and the Rhind Papyrus 223 Martin Stower 12-Jan-19 18:23
Re: Area and the Rhind Papyrus 142 Warwick 14-Jan-19 21:04
Re: Area and the Rhind Papyrus 188 DavidK 10-Jan-19 13:57
Re: Area and the Rhind Papyrus 223 Scott Creighton 10-Jan-19 14:16
Re: Area and the Rhind Papyrus 207 DavidK 10-Jan-19 17:10
Re: Area and the Rhind Papyrus 299 Sirfiroth 10-Jan-19 17:58
Re: Area and the Rhind Papyrus 188 engbren 16-Jan-19 10:24
Re: Area and the Rhind Papyrus 198 gjb 18-Jan-19 23:28
Re: Area and the Rhind Papyrus 207 DavidK 19-Jan-19 00:28
Re: Area and the Rhind Papyrus 211 engbren 06-Feb-19 12:56

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