This document discusses the definition, history, and importance of pi. It defines pi as the ratio of a circle's circumference to its diameter. The first calculation of pi was done by Archimedes of Syracuse in 287-212 BC. Important figures in pi's history include Archimedes, Ramanujan who discovered a rapidly converging formula for pi in 1914, and Newton who calculated pi to 16 decimal places in 1666. Pi is important in fields like life, pizza day celebrations, and engineering due to its role in calculating circles. The document ends with a math riddle asking the reader to solve for the value of 25 based on a pattern of equal signs between numbers.

1. Let’s starts our
session with a
riddle

6. Math is something to
understand not to learn
PI DAY 22/7

8. WHAT IS PI?

9. What is pi?
► Pi(some other Greek letter like Alpha or
omega )was chosen as the letter to
represent the value 3.14592….. Because the
letter {π} in Greek is Pronounce like our
letter p, stands for “perimeter”.

10. ► The ratio of the circumference of a
circle to it’s diameter.

11. ► The number to the right of
3 never Repeat in a
pattern

13. History of pi?

14. History of pi?
► The 1st
Calculation of π was by
ARCHIMEDES OF SYRACUSE.
(287-212 B.C).
► One of the Greatest Mathematician
of Ancient World.

15. ► In 1914,the Indian Mathematician RAMANUJAN
discovered the formula for computing pi that
converges rapidly.

16. ► In 1666 Newton Found pi to Sixteen decimal places by
evaluating the first twenty-two terms of an infinite
Sum.

18. Importance of pi

20. Pi in various fields:
► Life of pi.
► Pizza 🍕day.

21. Life of pi:
► Pi’s father Names him piscine molitor Patel after
piscine molitor,a famous swimming pool in France.

24. Pizza 🍕Day:
► In foreign countries they celebrate July 22 as a pizza
festival and they conduct more competitions like pizza
eating,fancy dress competition etc….

26. You Solve this?
IF
21=4
13=6
23=12
34=24
THEN
25=?