Question

the area of the four walls of a room is 77 m square the length and breadth of the room are 7.5 M and 3.5 M respectively find the height of the room

Answer 1

hiii!!

here's Ur answer...

given :-

length of the room = 7.5m

breadth of the room = 3.5m

height of the room = ?

area of four walls of a room means it's CSA (curved surface area)

therefore CSA of the room = 77m²

==> 2h ( l + b ) = 77m²

==> 2h ( 7.5 + 3.5 ) = 77m²

==> 2h ( 11 ) = 77m²

==> 22h = 77m²

==> h = 77/22

==> h = 3.5m

height of the room is 3.5m

hope this helps..!!