Janković, Vladimir On the impossibility of one ruler-and-compass construction. (English) Zbl 1032.51017 Mat. Vesn. 48, No. 3-4, 73-75 (1996). The author studies the problem of determining all integers \(n\geq 4\) for which there exists the ruler-and-compass construction of the cyclic polygon whose sides are equal to given \(n\) segments. Impossibility of such a construction for \(n=5\) is proved. Reviewer: Milica Stojanović (Beograd) MSC: 51M15 Geometric constructions in real or complex geometry Keywords:cyclic polygon; ruler-and-compass construction × Cite Format Result Cite Review PDF Full Text: EuDML