TY - JOUR AU - B. Yamrom TI - On two triangles with common side JO - Matematičeskoe obrazovanie PY - 2016 SP - 15 EP - 19 VL - 80 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2016_80_4_a1/ LA - ru ID - MO_2016_80_4_a1 ER -