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Posted by on Thursday, April 22, 2010 at 5:39pm.

there are 27 white cubes assembled to forma large cube.the outside surface of the large cube is painted red. the large cube is then separated into the 27 smaller cubes.how many of the small cubes will have red paint on exactly the following number of faces?

A= three faces
B= two faces
C= one face
D= no face

pick one ___________

  • math - , Thursday, April 22, 2010 at 6:18pm

    visualize a 3x3x3 cube
    D) the one cube in the middle will have no paint on it
    C) the middle cube of each face, so 6 faces, so 6
    B two faces,middle cubes joining two faces.
    again , I can see 6 of those

    A) wouldn't that be a corner cube?
    How many of those are there?

  • math - , Thursday, April 22, 2010 at 6:36pm

    so which one is the answer
    A
    B
    C
    d

  • math - , Thursday, April 22, 2010 at 6:42pm

    There are 4 different question,

    I answered 3 of those four you, and gave you the hint for A)

  • math - , Thursday, April 22, 2010 at 6:46pm

    yeh so
    A=1 cube
    B=6 cubes
    C=6 cubes
    D=14 cubes

    is this correct or not

  • math - , Thursday, April 22, 2010 at 6:48pm

    wait i mean
    A=14 cubes
    b=6 cubes
    c=6 cubes
    d=1 cubes

  • math - , Thursday, April 22, 2010 at 7:00pm

    A) How did you get 14???
    look at a pair of playing dice, pick up one of them.
    How many corners do you see?
    Mine has 8

  • math - , Thursday, April 22, 2010 at 7:03pm

    so its 8

  • math - , Thursday, April 22, 2010 at 7:06pm

    yes

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