11 + 9 + 11 + 9 = 40 feet
15 + 15 + 20 + 20 = 70 feet 70/3 is 23.1 yards, which means she need to buy 24 yards.
In order to calculate that, we also need to know the length of the room.
2 walls are 18 x 9 and 2 walls are 24 x 9 so not counting doors and windows it is 2x18x9 + 2x24x9 = 756 sq ft
it depends on how big the closet is.
62.83 feet
60 feet. Sorry, thought that was obvious.
90 square feet
It's the parameter, so it's 2L+2W, which is 38 feet.
you will need 84 sq. yards of wallpaper
Perimeter = 38 feet Area = 90 square feet
15 + 15 + 20 + 20 = 70 feet 70/3 is 23.1 yards, which means she need to buy 24 yards.
I would say that 102 feet of wallpaper would do the job.
84 square yards
Wallpaper usually is hung in a vertical manner: from the top of the wall to the bottom. If the wallpaper is 10 feet long, it means that it will cover a space that measures 10 feet or 120 inches. The specific measurement mentioned in the question means that piece of wallpaper will cover an area 10 feet tall and 9 feet wide.
Ten billion rolls that are each 25 feet long and one billionth of a foot wide.
14.) A room is 24 feet long, 18 feet wide, and 9 feet high. How many square yards of wallpaper are needed to paper the four walls of the room?
14ft