Question

the area of 4 walls of a room is 77 m² .the length and breadth the room drive 7.5 m and 3.5 m find the height of the room

Answer 1

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Secondary SchoolMath5+3 ptsThe 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?Ask for details Follow Report by Vk1259678 13.12.2017AnswersVishi11 Ambitiousarea 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 mComments (1) Report4.02 votesTHANKS2thank youKnightmare1 AmbitiousAREA 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 

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Answer 2

Height of room is 2m