Question

plz help guys it's emergency and not able to understand the question​

Answer 1

let

length = 3x

breadth = x

perimeter = 40cm

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perimeter of a rectangle =2(l+b)

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2 ( 3x + x ) = 40

2 (4x)=40

8x =40

x = 40/8

x = 5

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length = 3x= 3(5)= 15

breadth = x = 5

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I hope you understand

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keep smiling always