Question

a room is 8m long,7.6m and 3.5m high.The walls are to be distempered ,allowing 25 metre sq. for doors ,windows,etc. Find the total area to be distempered

Answer 1

Step-by-step explanation:

Length=8m

Breadth =7.6m

Height=3.5m

Area of four walls=2 (l +b)h

So 2 (8+7.6)m*3.5m

=2 ( 15.6m)3.5m

=31.2m*3.5m

=109.20m^2

Now,Area allowing for doors,windows, etc=25m^2

Hence,the total area to be distemper =109.20m^2-25m^2

=84m^2

Hope you understand.

-Thanks