Math, asked by ishaant97gmailcom, 1 year ago

the length height and the breadth of the hall are 5 M 6 m and 7 M respectively the find the cost of the painting of was only the walls the rate of 120 per square metre

ishaant97gmailcom: only four sides

anjalianju103: ok then u find layeral surface area

anjalianju103: ok then u find layeral surface area of

anjalianju103: ok then u find layeral surface area

Answers

Answered by anjalianju103

total wall or only four sides of wall

ishaant97gmailcom: only four sides

aditya9230: Here,l=5m,b=6m,h=7m.......Surface area of wall of the room is....2h(l+b)+lb....so,2×7m(5m+6m)+5m×6m...14m(11m)+30m²....154m²+30m²=184m²....cost of painting of four walls of the room at the rate of 120=184×120=22080

Answered by akhileshsharma2

let us find the area of hall

hall is in cuboidal shape
therefore area=2h(l+b)

that gives area=144m square

now cost of painting 1msquare=rs120
therefore cost of painting144
msquare=120x224=rs17280

akhileshsharma2: mark as brain list

Previous Question

Next Question