I take it you want the volume of oxygen that could fill the area. Since you say 3 x 3, i also assume a cubic shape. The forumula for voulme = length x width x height. In this case, it would be 3 x 3 x 3 (in a square, all the sides are the same) so the answer would be 27 cubic feet (or 27 ft3)
There is nine square feet on a 3 by 3 square board game.
7.0686 square feet for a 3-foot diameter circle.
2.37 cubic yards of stone for every 3 inches deep it needs to be
A 3 foot by 3 foot by 3 foot granite boulder could weigh approximately 3,000 to 4,000 pounds, depending on the density of the granite.
There is none. Because there is a hole! If you are asking how much dirt can fill the hole, then your answer is 27 cubic feet.
Area of a circle = pi*radius squared
None
240 x 3 /12 Cubic feet = 60 cubic feet
A 6 foot by 3 foot area would be 18 square feet.
A cylinder with a diameter of 1 foot and 3 feet high has a surface area of 11 square feet.
3 inches is 25 hundredths of a foot.
Yes you can.