Given:
The length of the box is l = 5 inches.
The width of the box is w = 4 inches.
The height of the box is h = 3.5 inches.
The objective is to find the surface area of the box to cover with a wrapper.
Explanation:
The general formula to find the surface area of the box is,
[tex]\text{TSA}=2(lw+wh+lh)\text{ . . . . . . (1)}[/tex]
On plugging the given values in equation (1),
[tex]\text{TSA}=2(5\times4+4\times3.5+5\times3.5)[/tex]
On further solving the above equation,
[tex]\begin{gathered} \text{TSA}=2(20+14+17.5) \\ =2(51.5) \\ =103in^2 \end{gathered}[/tex]
Hence, the required wrapping paper is 103 square inches.
