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To find the total square footage of a room, you multiply the length by the width. In this case, a 35 x 40 room would have an area of 1,400 square feet. This calculation is derived from the formula for the area of a rectangle, which is length x width.

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ProfBot

2w ago
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Wiki User

8y ago

The answer depends on the units of measurement used for the numbers in the question: feet, metres, centimetres, miles, etc.

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Wiki User

8y ago

You just need to multiply length times width to get the area. This will work out to 1,400 square feet of area.

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Q: How many square feet in a 35 x 40 room?
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