When the walls are true and vertical - they at least stand a chance!!
I take it you mean the area of the floor is 20 sq metres? In which case the ceiling would be the same size, but you can't calculate the area of the walls without knowing their height.
No. if the floor is smooth you must have friction between the ladder and the floor, or the ladder would just slide away. Technically you could do without friction between wall and ladder, but even that can be helpful in preventing the ladder from going sideways.
(21.5) x (21.5) = 462.25 -- It has 462.25 square feet on the floor. -- It has another 462.25 square feet on the ceiling. -- It has (21.5 times the height of the room) square feet on each of the four walls.
It takes 20 seconds for each floor. Therefore, it will take 140 seconds for you to reach the eighth floor.
The piece of wood that goes in between the floor and wall is called a baseboard.
Floor-to-ceiling windows are simply referred to as "floor-to-ceiling windows." They are windows that extend from the floor to the ceiling of a room, providing panoramic views and plenty of natural light.
The line where the ceiling meets the wall is called a cornice. A cornice can be set off from the ceiling with the use of cornice trim. The line where the wall meets the floor is called a baseboard.
2 inches of floor
Floor pricing
Floor pricing
a ceiling
ceiling not the floor,but the ceiling
The floor and ceiling functions give you the nearest integer up or down.Example: What is the floor and ceiling of 2.31?The Floor of 2.31 is 2The Ceiling of 2.31 is 3
stacked from floor to ceiling
There are lots of reasons this may be true. I suspect the biggest reason is that somewhere on that floor is the heating and cooling equipment, water heating, etc. and the ceiling height is necessary for that equipment. If this is true then you also have the bulk of your ducts, water pipes, etc. in the ceiling of the ground floor and these are often run between an artificial drop ceiling and the actual structural ceiling.
A ceiling painting is called a mural. Most people think of a mural as a wall painting, but it extends to floors and ceilings as well. the definition of a mural does say it is directly painted on the walls, floor or ceiling.