Given data
*The given volume is V = 125 ft^3
The formula for the volume of the cube is given as
[tex]V=a^3[/tex]*Here 'a' is the side of the cube.
Substitute the known values in the above expression as
[tex]\begin{gathered} 125=a^3 \\ a=5 \end{gathered}[/tex]The formula for the area of one face of the tank is given as
[tex]A=a^2[/tex]Substitute the known values in the above expression as
[tex]\begin{gathered} A=(5)^2 \\ =25\text{ }ft^2 \end{gathered}[/tex]