the floor of a rectangular hall has a perimeter of 280m. it's height is 6m. find the cost of coloring the 4 walls at ₹10 per m².
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Height of rectangular =6m
Perimeter =280m
We know that Perimeter of rectangle=2(l+b) 280=2(l+b)
Area of four walls =2(l+b)h
We know the value of 2(l+b) Area of four wall=280*6 Area of four wall =1680m^2 Cost of painting =rate
*area Cost of painting four walls =10*1680 Cost=16800rs
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Step-by-step explanation:
The answer :
Height of rectangular =6m
Perimeter =280m
We know that Perimeter of rectangle=2(l+b) 280=2(l+b)
Area of four walls =2(l+b)h
We know the value of 2(l+b) Area of four wall=280*6 Area of four wall =1680m^2 Cost of painting =rate
*area Cost of painting four walls =10*1680 Cost=16800rs
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