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If the total surface area of a cube is 302.46 in2, which best describes the length of the side of the cube?

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The surface area of a cube is calculated using the following formula

[tex]S=6a^2[/tex]

If the surface area is given then the side length can be found and vice versa.

We have thus

[tex]302.46=6a^2 \\ 302.46/6=a^2 \\ a=\sqrt{302.46/6}\approx5.8\mathrm{in}[/tex]

Hope this helps.

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