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610. [I. 25.. b] A Mathematical Recreation
Published online by Cambridge University Press: 03 November 2016
Abstract
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- Mathematical Notes
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- Copyright
- Copyright © Mathematical Association 1922
References
page 23 note * On page 345 of Bubnow’s Gerberti Opera Mathematica, 1899, this formula is expressed in the following words: “Omnis trigonus aequilaterus unum latus in se multiplicat ipsum latus ad earn multiplicationem addit, horum dimidiam sumit et sic aream suam implet.”