Compléter Mesures - ConversionsVersion en ligne Conversions aires par Jean-Philippe Solanet-Moulin 1 1 m2 = dm2 1 cm2 = mm2 1 m2 = cm2 23 cm2 = mm2 5 km2 = m2 20 dam2 = m2 95 dm2 = cm2 32 km2 = hm2 125 dam2 = . hm2 50 cm2 = . dm 2