Question

find the length of rectangle whose perimeter=640 cm, breadth=130 cm

Answer 1

p=2(l+b)

640=2(l+130)

2(l+130)=640

l+130=320

l=320-130

l= 190

Therefore length = 190cm

Answer 2

Step-by-step explanation:

p=2(l+b)

640=2(l+130)

640=2l+260

640-260=2l

380=2l

190=l

Therefore length= 190