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  3. 6th Class
  4. Mathematics
  5. Mensuration

6th Class Mathematics Mensuration Question Bank Menstruation

  • question_answer
    The perimeter of a rectangle is 36 cm. The measure of its length and breadth are natural. How many such rectangles are possible?

    A)  2                    

    B)    8

    C)  9                    

    D)    18

    Correct Answer: C

    Solution :

         Let L and B be length and breadth of rectangle respectively. Then, 2(L + B) = 36 Then, 2(L + B) = 36 \[L+B+\frac{36}{2}=18\] We have to find number of pairs of natural numbers whose sum is 18. These are (1, 17) (2, 16) (3, 15) (4, 14) (5, 13) (6, 12) (7, 11) (8, 10) (9, 9) Which are 9 in number.


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