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  3. 6th Class
  4. Mathematics
  5. Mensuration

6th Class Mathematics Mensuration Question Bank Mensuration Basics

  • question_answer
    If the length of a rectangle is doubled, the area of the new rectangle

    A)  Remains the same

    B)  Is doubled  

    C)  Becomes four times

    D)  None of these.

    Correct Answer: B

    Solution :

    Let \[\ell =x,\,\,b=y\] \[\therefore \]  Area\[=xy\] Now, New \[\ell =2x,\,\,b=y\] \[\therefore \]Area\[=2xy\] \[\therefore \]New Area \[=2\times xy\] \[=2\times \] Area of old rectangle \[\therefore \]New area becomes double.


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