Use the formula SA=6s2 , where SA is the surface area and s is the edge length of the cube, to solve this problem.

Eliz must cover a cube-shaped box with giftwrap. The edge length of the box is 312 feet.

What is the surface area of the box?

Enter your answer, as a mixed number in simplest form, in the box.

Using the SA formula you'll have to substitute in the edge length for s.

SA = 6(312)²
SA = 584064

The surface area is 584,064 feet²

Hope this helps :)

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athleticregina athleticregina · Answer 2 · 2019-03-22T05:45:16+01:00

Answer:

The Surface area of box is [tex]73\frac{1}{2}[/tex] feet²

Step-by-step explanation:

Given : Eliz want to cover a cube-shaped box with gift wrap. The edge length of the box is [tex]3\frac{1}{2}[/tex] feet.

We have to find the surface area of the box.

Given formula to be used

Surface area of cube = 6s²

Where s is the edge length of the cube.

Since, given edge of the box is [tex]3\frac{1}{2}[/tex] feet.

[tex]3\frac{1}{2}[/tex] feet simplifies to [tex]\frac{7}{2}[/tex] feet.

Put in above formula, we get,

Surface area of cube =[tex]6(\frac{7}{2} )^2=6\times \frac{49}{4}=3\times \frac{49}{2}[/tex]

Which simplifies to [tex]3\times \frac{49}{2}=\frac{147}{2}=73\frac{1}{2}[/tex]

Thus, The surface area of box is [tex]73\frac{1}{2}[/tex] feet²