a room is 8 metre long 4.5 metre wide and 2.8 meter high. it has one door which is 1.4 meter wide and 2 metre high with a semicircular wntilator a shown in the figure and two rectangular window 2 meter by 1.5 meter each. find the cost of white washing the inner floor walls of the room at the rate of ₹10 per sq.m π = 22/7
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$69 hai ans isko rupee ma convert kr lo
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