Odpowiedzi

2009-12-16T17:29:10+01:00
3 m2 = 3000000 mm2
7dm2 = 70000 mm2
1km2 = 1000000000000 mm2
2009-12-16T17:36:42+01:00
3 m2
7dm2
1km2

1m² = 1m * 1m = 100cm * 100cm = 1000cm * 1000cm= 1000000mm²

1dm² = 1dm * 1dm = 10cm * 10cm = 100mm * 100mm = 10000mm²

1km²= 1km * 1km = 1000m * 1000m = 100000cm * 100000cm =
= 1000000mm * 1000000mm= 1000000000000mm²

3m² =3*1m² = 3* 1000000mm² = 3000000mm²

7dm² = 7 * 1dm² = 7 * 10000mm² = 70000mm²