Va rooog !!E urgent !! Imi trebuie tot ...

1)a) Ad=π r² , r = 1,2m:2=0.6m
Ad=0.36*3.14=1.1304m²
b)S=1.2*2.4*-2*1.1304=2.88-2.2608=0.6192m²
c)0.6192<0.72
2)a)V=L*l*h=6*5*4=120m³
b)ρ=m/v, v=m/ρ=36/1200=0.03m³
c)120:0.03=4000saci