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SSC Sample Paper Mock Test-11 SSC CGL Tear-II Paper-1

  • question_answer
    The circumference of the base of a 9 m high wooden solid cone is 44 m. The slant the height of the cone is

    A)  \[\sqrt{120}\,\,\text{m}\]

    B)  \[\sqrt{130}\,\,\text{m}\]

    C)  \[\sqrt{150}\,\,\text{m}\]

    D)  \[7\sqrt{5}\,\,\text{m}\]

    Correct Answer: B

    Solution :

    Here,     \[2\pi r=44\]                   (Given) \[\Rightarrow \]\[r=\frac{44}{2\pi }=7\,\,\text{m}\] Slant height \[=\sqrt{{{r}^{2}}+{{h}^{2}}}=\sqrt{49+81}=\sqrt{130}\,\,\text{m}\]


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