%0 Journal Article %A A. N. Afanasyev %T Five solutions to a known geometric problem %J Matematičeskoe obrazovanie %D 2018 %P 2-6 %V 87 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2018_87_3_a0/ %G ru %F MO_2018_87_3_a0