Question

the perimeter of room is 154cm its length is 2m​

Answer 1

Answer:

given

• length - 2 cm
• perimeter - 154 cm
• breadth ?

perimeter of rectangular room =2 (l+b)

2 ( 2 + b ) = 154

2 + b = 154 / 2

2 + b = 77

b=77 - 2

b = 75 cm

Answer 2

Answer:

Perimeter(P)=2(l+b)

254cm=2(2*100cm+b)

254=400+2b

-146=2b

b= -146/2=-73

Therefore,b=73cm( as length is never negative)