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I don't think that notion is controversial. It is noted in the Wikipedia article: [en.wikipedia.org]

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Wikipedia
The fractional term 256/81 approximates the value of π as being 3.1605..., an error of less than one percent.

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Wikipedia
Specifically, problem 48 explicitly reinforces the convention (used throughout the geometry section) that "a circle's area stands to that of its circumscribing square in the ratio 64/81." Equivalently, the papyrus approximates π as 256/81, as was already noted above in the explanation of problem 41.

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Subject Views Written By Posted
Area and the Rhind Papyrus 1008 gjb 09-Jan-19 05:13
Re: Area and the Rhind Papyrus 222 engbren 09-Jan-19 06:03
Re: Area and the Rhind Papyrus 213 gjb 09-Jan-19 06:10
Re: Area and the Rhind Papyrus 181 engbren 09-Jan-19 06:30
Re: Area and the Rhind Papyrus 214 DavidK 09-Jan-19 10:06
Re: Area and the Rhind Papyrus 189 gjb 09-Jan-19 13:32
Re: Area and the Rhind Papyrus 194 Sirfiroth 09-Jan-19 15:04
Re: Area and the Rhind Papyrus 172 DavidK 09-Jan-19 20:02
Re: Area and the Rhind Papyrus 166 Sirfiroth 09-Jan-19 21:06
Re: Area and the Rhind Papyrus 212 engbren 10-Jan-19 02:02
Re: Area and the Rhind Papyrus 186 Sirfiroth 10-Jan-19 04:15
Re: Area and the Rhind Papyrus 222 engbren 10-Jan-19 05:53
Re: Area and the Rhind Papyrus 188 engbren 15-Jan-19 04:50
Re: Area and the Rhind Papyrus 200 Lee McGiffen 10-Jan-19 10:56
Re: Area and the Rhind Papyrus 240 Scott Creighton 10-Jan-19 12:33
Re: Area and the Rhind Papyrus 232 Martin Stower 12-Jan-19 18:23
Re: Area and the Rhind Papyrus 150 Warwick 14-Jan-19 21:04
Re: Area and the Rhind Papyrus 196 DavidK 10-Jan-19 13:57
Re: Area and the Rhind Papyrus 233 Scott Creighton 10-Jan-19 14:16
Re: Area and the Rhind Papyrus 215 DavidK 10-Jan-19 17:10
Re: Area and the Rhind Papyrus 312 Sirfiroth 10-Jan-19 17:58
Re: Area and the Rhind Papyrus 201 engbren 16-Jan-19 10:24
Re: Area and the Rhind Papyrus 210 gjb 18-Jan-19 23:28
Re: Area and the Rhind Papyrus 220 DavidK 19-Jan-19 00:28
Re: Area and the Rhind Papyrus 220 engbren 06-Feb-19 12:56


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