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6. Now, the perimeter of both the rectangle and the square will be 44cm
perimeter of a square= 4a
4a = 44
a= 11 cm
area of the square= a²
= 11² = 121 cm²
now, breadth = 5cm
perimeter of a rectangle = 2(l+b) = 44
2xl + 2x5 = 44
2xl = 44-10
l= 34/2
l= 17
area of a rectangle = l x b
now, area = 17 x 5 = 85 cm²
so, the square has the largest area by 121 - 85 = 36 cm²
7. one side of Raman's plot is 20 m, so, the area of the square will be 20 x 20=400m²
half of the plot is for hens, so, 400/2 = 200 m² is for hens
so, remaining area of plot will be 400- area of plot for hens = 400- 200 = 200 m²
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