Question

sheet of metal is required?
3. The length of a room is 25 m and its width is 18 m. The sum of the area of the floor and the ceiling
is equal to the sum of the four walls of the room. Find the height of the room.
folum​

Answer 1

Answer:

Let the height of the hall be h metres

We have, l=18m and b=12m

Now,

Sum of the areas of the floor and roof = Sum of the areas of four walls

2lb=2(l+b)h

lb=(l+b)h⇒ h=

l+b

lb

=

18+12

18×12

=7.2m