Sagot :
bonjour
tableau
km² hm² dam² m²
18 00 00 00
18 km² = 18000000 m²
m² dam² cm²
49 34 00
49,34m² = 493400 cm²
et
km² hm² dam² m²
4 3 26 8
4326,8 hm² = 43,248 km²
b.18m2=1800000,0000 m2 d.49,34m2=493,400cm2 f.4326,8hm2=43,268km2