Răspuns:
0.5 dam patrat=50 m patrat 72 cm patrat=0.0072m patrat 2.3 dm patrat=0.023m patrat 0.02 hm patrat=200 m patrat 638mm patrat=0.000638 m patrat 6 m patrat=60000 cm patrat 31 dm patrat =3100 cm patrat 23mm patrat=0.23 cm patrat 0.562 dam patrat=562000 cm patrat 8.09 km patrat=80900000000 cm patrat 20000 m patrat=2 hectare 0.05 km patrat=5 hectare 36 ari=0.36 hectare 12hm patrat=12 hectare 623 dam patrat =6.23 hectare SPER CA TE-AM AJUTAT :)
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