zad 29
a) 1cm^2 = 100mm^2
9cm^2 = 900mm^2
5,2cm^2 = 520mm^2
b) 1dm^2 = 100cm^2
17dm^2 = 1700cm^2
4,3dm^2 = 430cm^2
c) 1m^2 = 10000cm^2
7m^2 = 70000cm^2
2,5cm^2 = 25000cm^2
d) 1km^2 = 1000000m^2
50km^2 = 50000000m^2
8,5km^2 = 8500000m^2
zad 30
1ha = 10000m^2
1a = 100m^2
1ha = 100a
a) 7ha = 700a
2ha = 20000m^2
0,9ha = 9000m^2
b) 700m^2 = 7a
1200m^2 = 0,12ha
250m^2 = 2,5a
c) 11,3ha - 11300a - 1130000m^2
0,009ha - 9a - 900m^2
0,015a - 15a - 1500m^2
zad 31
a) 1cm = 10mm, więc 1cm^2 = 100mm^2
b) 1dm = 10cm, więc 1dm^2 = 100cm^2
c) 1m = 100cm, więc 1m^2 = 10000cm^2
d) 1km = 1000m, więc 1km^2 = 1000000m^2
zad 32
a) 6cm^2 = 600mm^2
25cm^2 = 2500mm^2
0,5cm^2 = 50mm^2
b) 3dm^2 = 300cm^2
27dm^2 = 2700cm^2
0,5dm^2 = 50cm^2
c) 8m^2 = 80000cm^2
92m^2 = 920000cm^2
0,5m^2 = 5000cm^2
d) 9km^2 = 9000000m^2
46km^2 = 46000000km^2
0,5km^2 = 500000km^2
