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Perimeter of rectangle = 2(L+B)
so, 2(20+40)= 120cms
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Its primiater is 10 since 10 x4 = 40
length = 40 cm
breadth = 20 cm
To find; perimeter of the field
perimeter of rectangle= 2{l+b}
=2{40+20}=120 cm

therefore the perimeter of the field is 120 cm

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