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SSC Sample Paper SSC CGL - Sample Paper-1

  • question_answer
    Each interior angle of a regular polygon is \[150{}^\circ .\] The number of sides of the polygon is

    A)  4                                

    B)  8        

    C)  12                   

    D)  16

    Correct Answer: C

    Solution :

    Each interior angle \[=\frac{(n-2)\times 180{}^\circ }{n}\] \[\therefore \]      \[=\frac{(n-2)\times 180{}^\circ }{n}=150{}^\circ \]             \[(n-2)\times 180{}^\circ =n\times 150{}^\circ \]                         \[30n=360{}^\circ \]                         \[n=\frac{360{}^\circ }{30}\] \[n=12\]           


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