Math, asked by abhiram1715, 1 month ago

pls send ans fast pls

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Answered by ShangzouHija

0

Step-by-step explanation:

Breadth=x

Length=2x-30

Perimeter=2(l+b)

=2(x+2x-30)

=2(3x-30)

=6x-60

Hence,

6x-60=420

6x=480

x=80

Length =160-30=130

Breadth=80

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