Question

18. A room is square based and its length is 5.5 m. The air in the room is 78.65m3
What is the height of the room ?

Answer 1

Answer:

Step-by-step explanation:

The volume of the room is equal to the volume of air that it can contain, Just like a 1 L bottle that can only contain a liter of water at most.

Here, Given :

Length (l) = 5.5m = Breadth (b) ....{Because the room is square and we can replace b by l}

Volume of the room (V) = Volume of air that it contains

                                       = 78.65 m^3

We know,

     V = l x b x h

or, 78.65 = l x l x h

or, 78.65 = 5.5 x 5.5 x h

:. h = 2.6 m , which is the required height of the room.