zamień jednostki: a)7,5m2= dm2 b)1200cm2= m2 c)420m2= a d)0,25ha= a e)2,5km2= a a to ary
a) 1m2 = 1m * 1m = 10dm * 10dm = 100dm2
7,5m2= (7,5 * 100)dm2 = 750dm2
b) 1m2 = 1m * 1m = 100cm * 100cm = 10 000cm2
1200cm2= (1200 : 10 000) m2 = 0,12m2
c) 1a = 100m2
420m2=(420 : 100)a = 4,2a
d) 1ha = 100a
0,25ha= 0,25 * 100a = 25a
e)2,5km2= 2,5 * 100ha = 250ha = 250 * 100a = 25000a
a)7,5m2 = 750 dm2
1m2 = 100 dm2
b)1200cm2= 0,12 m2
1cm2 = 0,001 m2
c)420m2 = 4,2 a
1 m2 = 0,01 a
d)0,25ha= 25 a
1ha = 100 a
e)2,5km2= 25000 a
1km2 = 10000 a
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a) 1m2 = 1m * 1m = 10dm * 10dm = 100dm2
7,5m2= (7,5 * 100)dm2 = 750dm2
b) 1m2 = 1m * 1m = 100cm * 100cm = 10 000cm2
1200cm2= (1200 : 10 000) m2 = 0,12m2
c) 1a = 100m2
420m2=(420 : 100)a = 4,2a
d) 1ha = 100a
0,25ha= 0,25 * 100a = 25a
e)2,5km2= 2,5 * 100ha = 250ha = 250 * 100a = 25000a
a)7,5m2 = 750 dm2
1m2 = 100 dm2
b)1200cm2= 0,12 m2
1cm2 = 0,001 m2
c)420m2 = 4,2 a
1 m2 = 0,01 a
d)0,25ha= 25 a
1ha = 100 a
e)2,5km2= 25000 a
1km2 = 10000 a