The length, width and the height of a hall are 5 m, 6 m and 7 m, respectively. The hall has one door of area 1 m x 0.5 m. Find the cost of painting the walls (only the walls) at the rate of rs 90 per square metre.
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sujalgoel:
let me retry
what happened
i calcuate tsa instead of LSA
now can u do?
no plz help
just calculate LSA and then subtract LSA-0.5 AND THEN MULTIPLY 90
i ll ask the question again
ok ask
what is lsa
lateral surface area
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