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V=Pp*h
75cm=0,75m
55cm=0,55m
Pp=0,75m*0,55m
Pp=0,4125m²
0,264m³=0,4125m² *h
h=0,264m³:0,4125cm²
h=0,64m
h=64cm-wysokość akwarium
2.
V=a*b*c
a=2cm
b=2dm=20cm
c=2m=200cm
V=2cm*20cm*200cm
V=8000cm³
objętość:8000cm³=8dm³=0,008m³
Pc=2ab+2ac+2bc
Pc=2*2cm*20cm+2*2cm*200cm+2*20cm*200cm
Pc=80cm²+800cm²+8000cm²
Pc=8880cm²
Pole powierzchni całkowitej:8880cm²=88,8dm²=0,888m²
3.
V=1000m³
Pp=20cm²=0,002m²
h=?
V=Pp*h
1000m³=0,002m² *h/:0,002m²
h=50 000m