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Please answer meA room is 6 metres long, 4 metres broadand 3.5 metres high. Find the area of thefour walls. Also find the area of the ceiling.If it costs 0.25 to whitewash 1 dm² of wall,find the cost of whitewashing the four wallsand the ceiling.​

Answer»

Dimensions of a room-
length= 6 m
breadth=4 m
height= 3.5 m
Therefore, area of the 4 WALLS = 2h(L+b)
=2*3.5(6+4)
=7*10= 70m²

Area of the ceiling= l*b
=6*4 = 24m²

So, portion of the room to be white-washed
=(70+24)m²
=94 m²
=9400 dm²

therefore, cost of white WASHING @ 0.25 per dm²
=Rs.(0.25 * 9400)
=Rs. 2350

Hope this helps..
If it does, plz mark as BRAINLIEST!!!!!! I


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