I met up with my friend Nathan Hamlin, a mathematician and instructor here at Washington State University, to explore your question about this neverending number.
We calculated Pi with some of my favorite items: yarn and a tuna can. You can try it at home, too.
Read all of this answer from Dr. Universe at https://askdruniverse.wsu.edu/2016/03/08/pi-3-14-3/.
A service of Washington State University, Ask Dr. Universe answers some of the most interesting, tough and smart questions from curious kids all around the world.