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Pole: 2*(4*5)+2*(5*2)+2*(4*2)=76cm2
b) Objętość: 7*9*15=945dm3
Pole: 2*(7*9)+2*(9*15)+2*(7*15)=606dm2
c) Obj: 4,5*2*7,2=64,8m3
Pole: 2*(4,5*2)+2*(2*7,2)+2*(4,5*7,2)=111,6m2
d) Obj: 4*2,5*5,3=53cm3
Pole: 2*(4*2,5)+2*(2,5*5,3)+2*(4*5,3)=88,9cm2