Question

The area of the four walls of a room is 80cm- and
its height is 4 m. Then, the perimeter of the floor
of the room is ....​

Answer 1

Answer:

20 m

Step-by-step explanation:

Length =l m

breadth =b m

Height = h=4m

perimeter = 2(l+b)

area of the four walls = 80m^2

2(l+b)*h=80

2(l+b)= 80/h

therefore

perimeter = 80/4

=20m