[4º ESO] A brief history of pi

Read this article about the history of pi and its applications and answer the questions:

https://lacienciaysusdemonios.com/2013/02/14/breve-historia-de-pi

1. What is the definition of pi?
2. What are the first documents that contain an approximation of pi?
3. Research: Explain, with the help of drawings and figures, Archimedes’ method to approximate pi.
4. Research: Find an infinite series or product that can be used to obtain an approximation of pi.
5. In the text, we can read that calculating billions of decimal figures of pi “has no use” … Why do we still find more and more decimal figures of pi then?
6. The text states that pi is an irrational transcendent number. What does it mean?
7. The number e is another very famous irrational and transcendent number. Write a short text about its history and applications.