How many square feet is a 21 by 4 foot room?

Anonymous

∙ 15y ago

Updated: 10/17/2024

21 x 4 = 84

-- There are 84 square feet on the floor.

-- There are 84 square feet on the ceiling.

-- There are a lot more square feet on the walls, but in order to

calculate them, you need to know the height of the room.

Wiki User

∙ 15y ago

What else can I help you with?

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How many square feet are in a 20 foot by 20 foot room?

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