the floor of a rectangular hall has a perimeter of 236 metre its height is 4.5 M find the cost of painting its four walls doors and windows be ignored @ rupees for 8.40 per square metre
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bishtdikshantdp2x1gj
Given perimeter of rectangle= 236m height= 4.5m find area of four walls
perimeter of rectangle = 2(l+b) 236 = 2(l+b)
calculate area of four walls we have to calculate curved surface area
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perimeter of rectangle = 2(l+b)
236 = 2(l+b)
calculate area of four walls we have to calculate curved surface area
= 2(l+b)h
= 236*4.5
= 1062 sq. metre
1 sq. metre cost = Rs 8.40
then cost of 1062 sq. metre = Rs 1062 * 8.40
= Rs 8920.80