## Pi day quiz

Today is the Pi day – an annual celebration of the mathematical constant Pi. It is observed every year on March 14, since Pi can be approximated by 3.14, and the this date is written as 3/14 in the month/day format.

To celebrate this day, here is a short quiz about Pi. You can find all the answers on the web, but it is more fun to try answering while depending only on personal knowledge. Let’s go!

1) In the ancient world, many cultures derived approximations to Pi. Which ancient culture had the best approximation?
a. Egypt
b. Babylon
c. Hebrews
d. India

2) Which of these fractions is the best approximation Pi?
a. 2549491779/811528438
b. 22/7
c. 3927/1250
d. 864/275

3) Who popularized the use of the Greek letter Pi to represent the ratio of a circle’s circumference to its diameter?
a. Carl Friedrich Gauss
b. Leonard Euler
c. Pierre Simon Laplace
d. Issac Newton

4) The problem of squaring the circle does not have a solution because Pi is
a. An algebraic number
b. A rational number
c. A transcendental number
d. An irrational number

5) Who prove that the problem of squaring the circle does not have a solution?
a. Carl Friedrich Gauss
c. Ferdinand von Lindman
d. Evariste Galois

6) Pi plays an important role in Statistics because
a. Numerical proportions can be illustrated by a pie chart
b. The sample size calculation formula contains Pi
c. The probability density function of the Normal distribution contains Pi
d. Pi is the maximal value of Euler’s population density curve

7) Who was born on Pi day?
a. Johann Strauss
c. Johann Sebastian Bach
d. Georges Bizet

8) The value of Pi is implied as equal to 3 in:
a. The New Testament
b. The Bible
c. The Quran
d. The Epic of Gilgamesh

9) The first known rigorous algorithm for calculating the value of Pi was devised by
a. Shankara Variyar
b. Liu Hui
c. Archimedes
d. Ibn al-Haytham

10)  Who had the digits of Pi engraved on his tombstone?

a. Ibn al-Haytham
b. Émilie du Châtelet
c. Jean Victor Poncelet
d. Ludolph van Ceulen

Good luck! I will post the answers next week.

### One thought on “Pi day quiz”

1. Dag 2019-03-14 / 20:22

for question 2)
why not include 355/113? Easy to remember (113355) and a better approximation than 3927/1250 or 864/275 that use higher numbers

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