TY - JOUR AU - A. N. Kovalev TI - 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 JO - Matematičeskoe obrazovanie PY - 2022 SP - 43 EP - 54 VL - 102 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2022_102_2_a5/ LA - ru ID - MO_2022_102_2_a5 ER -