Question

The area of the four walls of room is 77 m sq.the length and breadth of the room are 7.5 m and 3.5 m respectively.find the height of the room?

Answer 1

area of 4 walls = 2 (l+b) h
77= 2(7.5 + 3.5)h
77= 2×11h
h=77/2×11
h=7/2 m
h= 3.5 m

Answer 2

AREA OF FOUR WALLS = 77 m sq.
LENGTH = 7.5 m
BREADTH = 3.5 m


area of four walls = 77 m sq.
2( l + b) h. = 77
2(7.5+3.5)h = 77
2×11×h = 77
h = 77/22
h= 7/2
h= 3.5m
.....


thnk u # mr. king