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`the length of a rectangular field is thrice its breath . if the perimeter of this field

800 m what is the length of the field and its area.

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800 m what is the length of the field and its area.

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perimeter = 800 m

so, 2(l+b) = 2(3x+x) =8x

now, 8x = 800 m

x = breadth = 100 m and 3x = length = 300

so, area = 300 *100 = 30000 m²