The bubbles can never be of square shape for surface tension reasons as well as the reason that the pressure inside the bubble is distributed equally through all directions.
two square inches
4in2
8 inch schedule 40 pipe has a cross sectional area of 0.0583 square feet
A Y12 bar typically has a cross-sectional area of 113 square millimeters.
In European countries and elsewhere, the cross-sectional area of electric cables and busbars are expressed in square millimetres. The larger the cross-sectional area, the greater the current-carrying capacity.
Calculate attic square footage, calculate how much free area you need by dividing the attic square footage by 300. Convert the square feet needed to inches. Split the amount of free area needed equally between the intake and the exhaust. Divide that by 60, for how many vents you'll need.
If you slice a wire cleanly and then look at the cut end, you see a little circle at the end. The area of that circle is the "cross-sectional area" of the wire. The larger that area is, the lower the DC resistance of the wire is.
To calculate the cross-sectional area of a shape, you need to determine the shape of the cross-section first (e.g., square, circle, triangle). Then, use the appropriate formula for that shape. For example, the formula for the cross-sectional area of a square is side length squared, for a circle it is pi times the radius squared, and for a triangle it is base times height divided by 2. Finally, plug in the given dimensions into the formula to calculate the cross-sectional area.
3.1416"Answer:3.1416 square inches.
0.3344 square inch
Because the volume of the cylinder is proportional to the cross sectional area of the cylinder. The cross sectional area is a circle and the area of a circle is pi*r2.