Răspuns:
Explicație pas cu pas:
L=5k
l=2k
h=3k
V=30l=30000cm³
1l=1000cm³
V=L×l×h
5k×2k×3k=30000 |:30
k³=1000
k=10
L=50 cm
l=20 cm
h=30 cm
[tex]Vapa=\frac{4}{5} \cdot 30000=24000cm^{3}[/tex]
[tex]Vapa=L\cdot l\cdot h_{apa} =24000\\50\cdot20\cdot h_{apa}=24000\\h_{apa}=24 cm[/tex]
