6th Class Mathematics Mensuration Question Bank Mensuration (Perimeter & Area, Review of Earlier Concepts)

  • question_answer The base of a parallelogram is twice its height. If the area of parallelogram is \[162\,\,c{{m}^{2}},\]then find the base.

    A) \[9\,\,cm\]                    

    B)  \[18\,\,cm\]

    C) \[32\,\,cm\]                  

    D)  \[\text{50}\,\,cm\]

    Correct Answer: B

    Solution :

    \[b=2h:\,\,A=b\times h=2{{h}^{2}}=162c{{m}^{2}}\] \[\Rightarrow \,\,{{h}^{2}}=81\Rightarrow h=9\Rightarrow b=2h=18cm\]

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