I have an air compressor with a tank measuring 14 inches in diamter and 30 inches long.
Can anyone tell me how manny gallons of air the tank would hold
pi*7-squared would be 154. *30 long would be 4616 cu.in.
Now if there's 231cu.in per gallon, 4616/231 is 20 gal.
20 gallon tank, unless my geometry fails me...