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Math Help - how many square inches

  1. #1
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    how many square inches

    We have a box (which is not open) and is 8 inches wide, 12 inches long, and 6 inches high. How many square inches of cardboard are used?
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  2. #2
    Senior Member euclid2's Avatar
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    Quote Originally Posted by Mccoy31 View Post
    We have a box (which is not open) and is 8 inches wide, 12 inches long, and 6 inches high. How many square inches of cardboard are used?
    a box has six sides correct

    12*6( because the length is 12 and the box has 4 sides which the length is 12)
    =72(4) for the amount of sides
    =288

    Now do the ends 8*6=48(2) for the two ends of the box
    96

    288+96=384 inches squares

    does that match the answer in the book?
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  3. #3
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    Thank you very much!
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  4. #4
    Senior Member euclid2's Avatar
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    Quote Originally Posted by Mccoy31 View Post
    Thank you very much!
    no problem!
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