Question

The floor of a rectangular hall has a perimeter of 280m ,its height is 6 m. Find the cost of white waahing the four walls . At the rate of rupees 10 per meter square ​

Answer 1

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.