Răspuns:
L= 100cm
l=10 cm
h= 2 cm
V=L*l*h=100*10*2=2000cm³
m=200g
densitate (ro)=[tex]\frac{m}{V}=\frac{200g}{2000cm^{3} } = \frac{1g}{10cm^{3} }=0,1 \frac{g}{cm^{3} }[/tex]
