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Math Help - Contest problem 3

  1. #1
    Junior Member Kanwar245's Avatar
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    Contest problem 3

    A small cube with edge of 1 is placed on the top of the bigger cube with edge of 4, so that its base sits completely on top of the bigger cube. What is the total surface area of the solid obtained this way?
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  2. #2
    Member anonimnystefy's Avatar
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    Re: Contest problem 3

    hi

    6*4^2+4*1^2=6*16+4=96+4=100
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    Re: Contest problem 3

    (5*4^2)+(5*1^2)+(4^2)-(1^2)=100
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    Re: Contest problem 3

    6*4^2+5*1^2-1=100
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