IMO Shortlist 1979 problem 1
Dodao/la:
arhiva2. travnja 2012. Prove that in the Euclidean plane every regular polygon having an even number of sides can be dissected into lozenges. (A lozenge is a quadrilateral whose four sides are all of equal length).
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Prove that in the Euclidean plane every regular polygon having an even number of sides can be dissected into lozenges. (A lozenge is a quadrilateral whose four sides are all of equal length).
Izvor: Međunarodna matematička olimpijada, shortlist 1979