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In mathematics, the Mohr–Mascheroni theorem states that any geometric construction that can be performed by a compass and straightedge can be performed by a compass alone. The result was originally published by Georg Mohr in 1672,[1] but his proof languished in obscurity until 1928.[2][3] The theorem was independently discovered by Lorenzo Mascheroni in 1797.[4]
See also

Poncelet–Steiner theorem
Napoleon's problem


^ Georg Mohr, Euclides Danicus (Amsterdam: Jacob van Velsen, 1672).
^ Hjelmslev, J. (1928) "Om et af den danske matematiker Georg Mohr udgivet skrift Euclides Danicus, udkommet i Amsterdam i 1672" [Of a memoir Euclides Danicus published by the Danish mathematician Georg Mohr in 1672 in Amsterdam], Matematisk Tidsskrift B , pages 1-7.
^ Schogt, J. H. (1938) "Om Georg Mohr's Euclides Danicus," Matematisk Tidsskrift A , pages 34-36.
^ Lorenzo Mascheroni, La Geometria del Compasso (Pavia: Pietro Galeazzi, 1797).

External links

Construction with the Compass Only
A short elementary proof of the Mohr-Mascheroni Theorem

Mathematics Encyclopedia

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