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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-10

  • question_answer
    If diagonal of a cube is 12 cm. then Its volume in. cubic cm is :

    A) 8                     

    B) 12

    C) 24                    

    D) \[\sqrt[3]{2}\]

    Correct Answer: A

    Solution :

    Diagonal of cube \[=\sqrt{3{{a}^{2}}}\] \[\therefore \] According to question. \[12=\sqrt{3{{a}^{2}}}\] or, \[3{{a}^{2}}=\sqrt{12}\]cm a = 2cm \[\therefore \] Volume \[={{a}^{3}}={{2}^{3}}=\text{ }8cm\]


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