Answer assuming that by 'football' you meant one used for soccer:
Volume of a sphere (the football) = 4/3*pi*radius3
Surface area of a sphere = 4*pi*radius2
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Answer assuming that by 'football' you meant one used for American football:
Using the dimensions given on Wikipedia for a standard American football (length of ~11 inches and a central circumference of ~22 inches), one can see that the central radius is approximately 3.5 inches.
Further assuming that the shape of an American football in long cross-section is roughly that of a Vesica Piscis, one can integrate using the curve produced to yield either surface area or volume contained. Such integrations are particularly easy and straight forward to perform using a numerical approach such as by using a spreadsheet application, like Microsoft Excel.
The approximate volume and surface area of a standard football are 232 cubic inches and 189 square inches, respectively.
If one wanted to make a rough empirical check of this volume calculation, a properly inflated standard football could be immersed in water and the the displacement carefully measured. Checking the surface area would involve a bit more work but could be accomplished, again roughly, by deflating the ball and cutting it into triangular pieces that individually lie flat; which could then be measured and their collective surface areas summed up.
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To obtain the ratio of surface area to volume, divide the surface area by the volume.
surface area/ volume. wider range of surface area to volume is better for cells.
Volume=area * length of that surface
surface area divided by volume
Think of surface area as your skin and volume as all the contents inside your body. So they relate because surface area can hold volume or volume could be inside the surface area.