Mathematics
Grade6
Easy

Question

If the length of a rectangular field is 24.56 m and its area is 356.12 m2, then its perimeter is__________.

  1. 78.12 m    
  2. 68.72 m    
  3. 77.52 m    
  4. 82.52m    

hintHint:

Area of rectangle is product of length and breadth.

The correct answer is: 78.12 m


    Length of the rectangular field = 24.56 cm
    Area of the field = 356.12 m2
    Width of the field equals fraction numerator text  Area  end text over denominator text  Length of the field  end text end fraction equals fraction numerator 356.12 over denominator 24.56 end fraction
    =14.50 m
    Perimeter of a rectangle = 2 open parentheses l plus b close parentheses
    = 2 open parentheses 24.56 plus 14.50 close parentheses equals 78.12m

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