Question

Jen made a small box out of cardboard to wrap a birthday present. The box is 4 in. high, 4.4 in. long, and 5 in. wide. She wants to know the how much wrapping paper she will need to wrap the box. Find the surface area of the box.A: 75.2 in.2B: 119.2 in.2C: 88.0 in.2D: 59.6 in.2

Answer 1

the dimensions of the box is,

height h = 4 in

length l = 4.4 in

width b = 5 in

so this box is cuboid, os the surface area of the cuboid is,

`A=2(l* b+b* h+h* l)`
`A=2(4.4*5+5*4+4*4.4)`
`\begin{gathered} A=2(22+20+17.6) \\ A=2*59.6 \\ A=119.2\text{ inch\textasciicircum{}2} \end{gathered}`

so the surface area is 119.2 square inch

thus, the correct answer is option A