Question

the area of the four wall of a room 77 square meters. the length and the breadth of the room are 7.5 meter and 3.5 meter respectively. find the height of the room.

Answer 1

breadth=3.5m

area of four wall =2 (l+b)h

=77square m

let the height=area of four wall=2 (7.5+3.5)x

2 (11.0)x=77sq mlength=7.5m

22x=77sq m

x=77/22

x=3.5m

so, height of room=3.5m (ans)