A wallpaper border is to be pasted halfway up the wall around a child's bedroom. What is the total length of the border needed? 12ft 9in...8ft 1in...2ft 6in please help

Question

please help me out. I've been struggling a lot. Thanks

Answer 1

The length of the border only depends on the length and width of the room and not on its height, but I'm guessing that the door is 2'6" wide and will not require a border. So the perimeter of the room is 2(length+width)=2(12'9"+8'1")=2*20'10"=41'8" less 2'6"=39'2" is the length of the border.