the ratio between the length and breadth rectangular field 5ratio4 if the breadth is 20 m less than the length the perimeter of the field
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let,
l=5x, b= 4x
5x-4x = 20
x = 20
l= 5x. , b= 4x
= 100. = 80
perimeter = 2 ( l+b)
= 2(100+80)
= 360m²
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