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5 July, 22:00

The surface area of a cube is 150cm squared. What is the length of each edge?

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  1. 5 July, 22:21
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    Hello,

    Let x be the side

    6*x²=150

    ==>x²=25

    ==>x=5 or x=-5 (rejected)

    5 cm is the length of each of those 12 edges.
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