22/7
355/113 = 3.141593
According to most news sources (and Wikipedia), the most accurate calculation of pi currently stands at five trillion digits (5,000,000,000,000 digits!) That's quite a lot.
Archemedes
main fraction:22/7 most accurate fraction:355/133
22/7
3.1459/it 2556998512545123113
355/113 = 3.141593
Yes. The larger the circle you're measuring, the more accurate that pi will be.
Archimedes
Pi, being irrational, has an endless number of digits to the right of the decimal, as you know. But for almost any application, even basic engineering, a value of 3.1417 is highly accurate.
According to most news sources (and Wikipedia), the most accurate calculation of pi currently stands at five trillion digits (5,000,000,000,000 digits!) That's quite a lot.
Area = pi * radius squared A = pi * r2 Best to use the calculator value of pi to 9 places for more accurate answers.
Archimedes
Archemedes
The formula for the area of a circle is pi times the radius squared. The number pi is only used in an approximate form, since the decimal expansion of pi is infinitely long and non-repeating. Consequently, all calculations of the area of a circle are also approximate. However, you can be as accurate as you want to be. Pi has been calculated to thousands of decimal places, which is ridiculously more than you would ever need for any practical purpose. In most cases, the approximation of pi as 3.14 is close enough. Your result will be accurate, it just won't be 100% accurate.
main fraction:22/7 most accurate fraction:355/133