Question

pls send ans fast pls I beg dont say I don't know​

Answer 1

Answer:

see snap

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Answer 2

let the breath be x and length be 2x - 30.

perimeter = 420m

2 ( l + b ) = 420

( l + b ) = 420/2 = 210

( now put the value of x and b )

2x - 30 + x = 210

3x = 210 + 30 = 240

x = 240/30 = 80

x = 80

now

Breadth = x = 80m

length = 2x - 30 = 2 ( 80 - 30 ) = 160 - 30 = 130m

hope this answer helps you...take care!