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27 November, 13:33

How much paper do you need to completely cover a rectangular box that is 20 inches by 18 inches by 2 inches?

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  1. 27 November, 14:43
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    Surface area

    SA=2 (LW+LH+WH)

    SA=2 ((20) (2) + (20) (18) + (2) (18))

    SA=2 (40+360+36)

    SA=2 (436)

    SA=872

    872 in^2 of paper
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