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When two cube of side 12 cm are joined end to end to form a cuboid then the total surface area of cuboid is

  • maths -

    total surface area of one cube of side 12 = 6(12^2) = 864

    when joined , two faces will not be seen

    total surface area = 2(864) - 2(12^2) = 1440

  • maths -

    -3cm*4cm*scm

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