Question

    A cuboid is formed by combining two identical cubes. If

    the surface area of each cube is 600 cm², find the total surface area of the resulting cuboid.
    A 1330 cm² Correct Answer Incorrect Answer
    B 1000 cm² Correct Answer Incorrect Answer
    C 1432 cm² Correct Answer Incorrect Answer
    D 1768 cm² Correct Answer Incorrect Answer

    Solution

    Each cube has surface area = 600 cm², so two cubes = 1200 cm² When joined face-to-face, one face from each cube (total 2 faces) gets hidden Each face = 10×10=100 cm², So, hidden area = 200 cm² Total visible surface area = 1200 − 200 = 1000 cm²

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