let breadth be x cm

Therefore, length will be =3+x cm

ATP,

Perimeter =2(l+b)

=>34=2(3+x+x)

=>34/2=3+2x

=>17-3=2x

=>14/2=x

=>7=x

Therefore, bredth=x=7 cm

length=3+x=3+7=10cm

Answer:

first time i want to say i am not brother yes you can help if you can