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eroshea

  • 3 years ago

A cube of side 5 cm is painted on all its side. If it is sliced into 1 cu. cm cubes, how many 1 cu. cm cubes will have exactly one of their sides painted?

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  1. kplmittal07
    • 3 years ago
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    25

  2. agent0smith
    • 3 years ago
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    |dw:1355653379322:dw| As you can see, only the inner 3cmx3cm area of each side will have exactly one side painted. The ones around the outer portion either have 2 or 3 sides painted. There's six sides, so the number with one side painted: 6x(3x3)

  3. eroshea
    • 3 years ago
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    wow.. nice presentation and explanation.. got it !! thanks :))

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