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2m=200cm
7m=700cn
0,7m=70cm
V=Pp x H
Pp=70cm x 200cm=14000cm²
H=700cm
V=14000cm² x 700cm = 9 800 000cm³
m- masa
m=ro x V
ro =0,9g/cm³
m=0,9 x 9 800 000 = 8 820 000g
1kg = 1000g
8 820 000g = 8 820kg
1t = 1000kg
8 820kg = 8,82t
Rys w załączniku.