Question

Bardzo proszę o pomoc, zadania w załączniku. Daje naj!

Answer 1

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