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iren2701 [21]
3 years ago
8

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

Mathematics
2 answers:
vazorg [7]3 years ago
8 0

Answer:

The Surface area of box is 73\frac{1}{2} feet²

Step-by-step explanation:

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

3\frac{1}{2} feet simplifies to  \frac{7}{2} feet.

Put in above formula, we get,

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

Which simplifies to 3\times \frac{49}{2}=\frac{147}{2}=73\frac{1}{2}

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

Irina-Kira [14]3 years ago
3 0
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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