Answer:
Length of the cubic tank = 0.75 m
Step-by-step explanation:
Volume of the tank = 420 L = 0.42 [tex]m^{3}[/tex]
Since the tank is cubic in structure so the volume of the tank is given by
[tex]V = a^{3}[/tex]
Where a = length of the cubic tank
[tex]a^{3}[/tex] =0.42 [tex]m^{3}[/tex]
a = 0.75 m
Therefore length of the cubic tank = 0.75 m