Mohr–Mascheroni theorem

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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, but his proof languished in obscurity until 1928. The theorem was independently discovered by Lorenzo Mascheroni in 1797.

[edit] See also

• Poncelet-Steiner theorem
• Napoleon's problem

[edit] External link

• Construction with the Compass Only