9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-11

  • question_answer
    The external diameter of an iron pipe is 25 cm and its length is 20 cm. If the thickness of the pipe is 1 cm, find the total surface area of the pipe.

    A)  \[3092\,\,c{{m}^{2}}\]

    B)  \[3263\,c{{m}^{2}}\]

    C)  \[3162\,c{{m}^{2}}\]             

    D)  \[3363\,c{{m}^{2}}\]

    E)  None of these

    Correct Answer: A

    Solution :

     Not Available   


You need to login to perform this action.
You will be redirected in 3 sec spinner