Question

find priemeter of area 5cm length and breath​

Answer 1

Let the breadth of the rectangle be xcm

Then it's length=x+5cm

Perimeter=2(length+breadth)

⇒70=2(x+(x+5))

⇒ 70/ 2 =2x+5

⇒2x+5=35

⇒2x=35−5=30

⇒x= 30/2 =15cm

Breadth=x=15cm and length=x+5=15+5=20cm

Answer = 20cm

hope it will help you