3 ms·Pi is sqrt of 10 for all practical purposes.by rocqua 7y agoPi is sqrt of 10 for all practical purposes.mkl 7y agoSome practical purposes, maybe. Even 3.14 is a lot more accurate.alaaalawi 7y agoor 355 / 113. I memorized 113355. good enough for a lot. initially got it from https://colorforth.github.io/pi.htm https://colorforth.github.io/pi.htm