a)aria bazei=30×6=180m²=18000dm²
arie placa=1dm²
Nr. placi=18000÷1=18000placi (pt fundul bazinului)
arie laterala bazin=2(30×2)+2(6×2)=120+24=144m²=14400dm²⇒14400placi(pentru peretii bazinului)
b)Volum bazin=30×6×2=360m³=360000dm³=360000 litri de apa
c)Cost total=360×1,35=486lei