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Math Help - Wrapping paper question

  1. #1
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    Smile Wrapping paper question

    Three identical cubical boxes form a stack. It takes 350 sq. cm of wrapping paper to completely wrap the whole stack with no overlap. suppose each cube is wrapped separately and completely instead. What is the least amount of additional paper that is needed, in sq. cm?

    Thanks for looking and hopefully answering!
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  2. #2
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    Wrapping paper

    Hello fecoupefe
    Quote Originally Posted by fecoupefe View Post
    Three identical cubical boxes form a stack. It takes 350 sq. cm of wrapping paper to completely wrap the whole stack with no overlap. suppose each cube is wrapped separately and completely instead. What is the least amount of additional paper that is needed, in sq. cm?

    Thanks for looking and hopefully answering!
    Count the number of visible square faces. Divide 350 by your answer. How many faces are hidden? So how much more paper is needed?

    Grandad
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