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A cube has a surface area of 294 sq. in. What is the length of its sides?

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  1. 30 June, 02:18
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    The surface area of a cube is:

    A=6s^2, where s is the length of a side.

    6s^2=A

    s^2=A/6

    s=√ (A/6), we are given that the area is 294in^2 so:

    s=√ (294/6)

    s=√49, since s>0

    s=7in

    So the side length of the cube is 7 inches.
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