%0 Journal Article %A A. N. Kovalev %T Fractions for $\sqrt{2}$, $\sqrt{3}$, $\sqrt{5}$, quasi pythagorean triples and the appearance of the royal cubit, foot and inch in Egypt during the Ancient Kingdom %J Matematičeskoe obrazovanie %D 2022 %P 43-54 %V 102 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2022_102_2_a5/ %G ru %F MO_2022_102_2_a5