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a) 1. 160mm
2. 320mm
3.210000mm
4.450mm
b)1.
6km=0,000006m
75dm= 0,75m
45cm= 0,0045
zad2;)
a)3km=300ha
0,02km=2
620m=0,620 ha
135a=1,35ha\
b)30km=30 000 a
0,5 km= 5000a
1,2ha =12000a