Corn is an excellent energy feed, and is ideal for finishing feeder pigs because it is high in digestible carbohydrates, low in fiber, and is very tasty feed for pigs to pigs! But corn alone will not keep pigs growing and healthy. Corn must be supplemented with Pig(s) food(s) vitamins to keep pigs healthy.
Pi is the ratio of a circle's circumference to it's diameter. The resulting number is the reason there cannot be a perfect circle. It's value is approximately 3.142 which, rounded up to the nearest whole number, would be four. It would not be three, as that would be rounding down.
27.17469 rounded to the nearest whole number is 27. 36.74691 rounded to the nearest whole number is 37. 12.34690 rounded to the nearest tenth is 12.3. 89.46917 rounded to the nearest tenth is 89.5. 50.02139 rounded to the nearest hundredth is 50.02. 72.63539 rounded to the nearest hundredth is 72.64.