"3 feet round" is not clearly defined: is that the radius, the diameter, or the circumference?
6,200 gallons.
3,398.4 gallons.
5,974 gallons.
1,770 gallons.
Three feet of water in a 12-foot round pool is about 2,550 gallons.
About 212 gallons.
About 5,310 gallons.
About 13,010 gallons.
2,360 gallons.
9,440 gallons.
26,550 gallons.
About 19,355 gallons.