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You have to multiply the two dimensions to get the area. In this case the answer will be 600 square feet.

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Q: How many square feet is a 20ft by 30ft retangle?
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Do to convert a room 20ft by 30ft into square feet?

All you need to do is multiply the length by the width, and it doesn't matter in what order you do it. 20ft X30ft= 600 square feet.

20ft x 20ft into square feet?

400 square feet

30ft x 20ft equals how many square feet?

30 ft * 20 ft = 30*20 sq ft = 600 sq ft

30 feet long and 20 feet wide how many sq feet of carpet?

30ft*20ft = 600 sq ft

How many square feet is a room if it is 18ft by 20ft?

18ft*20ft = 360 square feet

How many square foot is 20x20?

If that is 20ft by 20ft then there are 400 square feet

How many square feet is a 30ft x 14ft room?

A 30ft x 14ft room = 420 square feet.

How many square feet in a 20x30 rectangle?

assuming you mean 20ft by 30ft, you just find the area. To find the area, simply multiply both sides, so 20x30 = 600 sq ft

How do you figure square feet 47 ft long by 30ft wide?

You multiply the length by the width, i.e. 47ft x 30ft = 1,410 square feet.

What is the square footage 20 feet by 15 feet?

20ft * 15ft = 300 square feet.

How many square feet is 30ft x 2ft?

30*2 = 60 square feet

How many square feet are in a building that is 30ft x 20ft x 50ft?

If you are truly looking for SQUARE FEET for a building with these measurements, more informaiton will be needed. A building, whether square or rectangular, will have only two different measurements. My guess is that you are looking for cubic feet, which would include the height of the building. For Example: 30ft x 20ft x 50ft would be 30 ft wide, 20 foot deep (long), and 50 ft tall. Regardless of the placement and the symbolism of the measurements, the result is the same: 30 x 20 x 50 = 30,000 cubic ft.