trebuie de aflat volumul ,dar mai intii - de facut transformari :
15dm=1.5m
1.2m
38cm=0.38m
Vparalelipidedului=Abazei*h ; Ab=L*l=1,5*1,2=1,8(cm^2)
Vp=1,8*0,38=0.684 (cm^3)
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cam asa ceva,dar nu promit nimic:)