Question

find the area of four walls of a room (assumed that there are no doors or Windows )if its length 12m., breadth 10m. and height 7.5 m

Answer 1

Answer :

=> Given Length of the room (L) = 12 m

=> Breadth of the room (B) = 10 m

=> Height of the room (H) = 7.5 m

As the room is a Cuboid.

Area of Four walls = 2( L + B)H

Therefore, Area of Four walls =

=> 2(12 + 10)7.5

=> 2 × 22 × 7.5

=> 44 × 7.5

=> 330 sq. metres

So, Lateral Surface area of Area of Four walls = 330 sq. metres

HOPE IT WOULD HELP YOU

Answer 2

Here is your solution

Given that :-

The area of four walls of a room

if its

Length = 12m

Breadth = 10m

Height = 7.5 m

(assumed that there are no doors or Windows ) neglect it .

Now

we know that

Area of four wall of room = 2 (l+b)×h

=>2 (12m+10m)×7.5m

=>2 (22m)×7.5m

=>330 m^2.

Hence,

The area of four walls of a room = 330m^2.

Hope it helps you .