Area

The question, as stated, cannot be answered since it is ambiguous. An acre is a measure of area, with dimensions [L2], a 2-dimensional measure. Three measurements are given indicating a solid object, not an area.

About 2.01 acres.

This is the same as how many dogs make up 3 watermelons.

Totally different.

Miles = distance

sq. miles = area

4.5 square feet.

63 square feet. To get area, multiply length times width.

Granite is figured at 168 pounds per cubic foot. If you know the thickness, you can determine the weight per square foot.

Answer: 20 acres = 80,937.13 m²

None.

An inch is a measure of length or distance while a square yard is a measure of area. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.

297.78

I'm at a loss. "580 ft x 580 ft x 440 ft" can't be the measurements of any rectangle.

It is not possible to convert a length unit to an area unit.

No, they are not the same. A foot is 0.3048 meters.

1.4 feet x 22 feet is 30.8 square feet

0.00234375

7.74 m^2

None.

A centimetre is a measure of distance or length whereas a square foot is a measure of area. The two measure different things and it makes no sense to try to convert from one to the other.

For area measurements, you multiply the length by the width. Here the calculation gives you an answer of 861.25 square feet.

1.106345

675 sq ft = 62.71 sq meters

To get the area of a rectangular room, you need to multiply TWO numbers, not four. If you multiply three numbers (for measurements at right angles to each other), you would get a volume.

4.124

None.

An acre is a measure of area while a cubic yard is a measure of volume. The two measure different things and it makes no sense to try to convert from one to the other.

A millilitre is a measure of volume in 3-d space so a square millilitre would be a measure of hypervolume in 6-dimensional space. Meanwhile, a square metre is a measure of area in 2-dimensional space - not 6-d. According to basic principles of dimensional analysis, conversion from one to the other is not valid.

3 785.411 784 cubic centimeters, 0 square centimeters

Normally the square footage of a room refers to the floor area ad so the height of the room is irrelevant. In this case, the area is 4 ft * 4 ft = 16 square feet.