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1m²=1*10 000=10 000cm²
3m²=30 000cm²
10m²=100 000cm²
B)
a=18m,
b=8m
P=a*b
P=18*8=144m²
144:4=36Musi tyle kupić puszek lakieru Uretolit.
Odp. Trzeba kupić 36 puszek lakieru Uretolit.