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.
The value of pi is the ratio of the circumference of a circle to its diameter. Therefore, you can determine the value of pi by drawing ANY perfect circle (either physically or in a computer program simulation), then measure it's circumference and diameter, take the ratio and that's it! The value of pi correct to seven decimal places is: 3.1415926.