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    Question

    The total surface area of a cube

    is given as 486 cm┬▓. What is the volume of the cube?
    A 529 cm┬│ Correct Answer Incorrect Answer
    B 629 cm┬│ Correct Answer Incorrect Answer
    C 729 cm┬│ Correct Answer Incorrect Answer
    D 429 cm┬│ Correct Answer Incorrect Answer

    Solution

    ATQ, Surface area of the cube = 6 X (edge)2 6 X (edge)2 = 486 Or, (edge)2 = 81 So, length of the edge of the cube = 9 cm So, volume of the cube = (edge)3 = 93 = 729 cm3

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