I want to ask the question the floor of a rectangular hall has a perimeter of 300 its height is 8 metre find the cost of the white washing of the four walls including those Windows extra at the rate of 9 per metre square
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2(l+b)=300
(l+b)=150
h=8
area of four walls =2(l+b)*h
=2(150)8
=2400m²
the cost of white washing the walls at the rate of Rs. 9 per m²=2400*9=Rs.21600
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(l+b)=150
h=8
area of four walls =2(l+b)*h
=2(150)8
=2400m²
the cost of white washing the walls at the rate of Rs. 9 per m²=2400*9=Rs.21600
hope this answer helps you...
please mark the answer as the brainliest
[Thank you ]
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