Question

the area of four walls of a room is 120m*m. if the length of the room is twice its breadth and the height is 4 m , find the area of the floor.​

Answer 1

Answer:

length -

-2x, breadth -x , height-4

area 2(2x+X)=120

6x=120

X=20

area of floor is lb.

length =40

breadth =20

area = 800

Answer 2

Step-by-step explanation:

area of four walls =2(l+b)*h

let the length be 2xand breadth be X

2*(2x+X)*4 =120m^2

2*3x*4=120

24x=120x

X=5

2x=10