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  5. Area, Perimeter and Volume

5th Class Mathematics Area, Perimeter and Volume Question Bank Perimeter and Area

  • question_answer
    The area of the floor of a rectangular hall is 80 sq. m. What is its perimeter if its length is 10 m?

    A)  8 m

    B)  18 m

    C)  30 m

    D)  36 m

    Correct Answer: D

    Solution :

    : Area of rectangular floor \[=80\,sq.\,m\] Length\[\times \] Breadth = 80 sq. m \[\Rightarrow \]  \[10\times \]Breadth \[=80\text{ }sq.\text{ }m\] \[\Rightarrow \] Breadth = 8 m \[\therefore \] Perimeter = 2(Length + Breadth) \[=2(10+8)=2\times 18=36\,m\]


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