Gabriella is decorating the outside of a box in the shape of a cube.
The side length of each side of the cube is the same that is 6.4 in
The surface area of the cube is given by
[tex]A=6a^2[/tex]Where a is the side length of the cube.
The formula tells us that there are 6 small squares and the surface area of each square is a^2
Let us substitute a = 6.4 into the above formula
[tex]\begin{gathered} A=6\cdot(6.4)^2 \\ A=6\cdot40.96 \\ A=245.76\; in^2 \end{gathered}[/tex]Therefore, the surface area of the cubic box is 245.76 square inches.
