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  5. Area, Perimeter and Volume

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

  • question_answer
    The area of a square is 100 sq. cm. If the sides this square are increased by 10% then what will be the area of new square?

    A) 121 sq. cm  

    B) 101 sq. cm     

    C) 81 sq. cm                    

    D) 169 sq. cm

    Correct Answer: A

    Solution :

    Given area of square = 100 \[side\times side=100=10\times 10\] \[\Rightarrow \]Side = 10 cm Increased in side of square = 10% of 10 = 1 \[\therefore \] New side = 10 + 1 = 11 \[\therefore \] Area of new square \[={{\left( 11 \right)}^{2}}=121sq.cm.\]           


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