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Surface area = 2*(3*4 + 4*5 + 5*3) = 2*(12 + 20 + 15) = 2*47 = 94 sq ft.

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Q: What is the surface of a box that is 3ft by 4ft by 5ft?
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What is the surface area of a 3Ft by 3Ft by 4Ft box?

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