1)
a=2cm
V=a³=2³=8 cm³
Pc=6a²=6·2²=6·4=24cm²
2)a=200m
b=10m
h=9m
V=abh=200·10·9=18000 m³
Pp=ab=200·10=2000cm²
Pb=2ah+2bh=2·200·9+2·10·9=3600+180=3780 m²
Pc=2Pp+Pb=2·2000+3780 =4000+3780=7780m²
3)
a=5
cm
Pc=6a²=6·5²=6·25=150cm²
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1)
a=2cm
V=a³=2³=8 cm³
Pc=6a²=6·2²=6·4=24cm²
2)a=200m
b=10m
h=9m
V=abh=200·10·9=18000 m³
Pp=ab=200·10=2000cm²
Pb=2ah+2bh=2·200·9+2·10·9=3600+180=3780 m²
Pc=2Pp+Pb=2·2000+3780 =4000+3780=7780m²
3)
a=5
cm
Pc=6a²=6·5²=6·25=150cm²