Question

    Four cubes, each with a side length of 8 cm, are connected

    in a straight line to form a cuboid. Calculate the total surface area of the resulting cuboid.
    A 1152 sq cm Correct Answer Incorrect Answer
    B 1272 sq cm Correct Answer Incorrect Answer
    C 1436 sq cm Correct Answer Incorrect Answer
    D 1096 sq cm Correct Answer Incorrect Answer

    Solution

    Length of cuboid = 4 X 8 = 32 cm
    Breadth of cuboid = 8 cm
    Height of cuboid = 8 cm
    Total surface area of cuboid = 2 X (lb + bh + hl) , where 'l', 'b' and 'h' are length, breadth and height respectively
    So, required area = 2 X (32 X 8 + 8 X 8 + 8 X 32) = 2 X (256 + 64 + 256) = 1,152 cm 2

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