1. PI DAY TRIVIA QUIZ

2. What are the first ten digits of pi?
3.1415926535
3.1415627396
3.1423765835
3.1416834729

3. What is the official date of Pi Day?
May 18th
July 22nd
March 14th
April 7th

4. Pi is found by dividing radius by
diameter. True or false?
True
False

5. What is the Greek letter used to
represent 2 times pi?
Theta
Rho
Phi
Tau

6. When was the first recorded Pi Day celebrated?
2001
1962
1988
1999

7. True or false: Pi is an irrational number.
True
False

8. Who is credited with hosting the first Pi Day?
Larry Shaw
Leonhard Euler
Albert Einstein
Robert McClear

9. Which of the following formulas include pi?
Perimeter of a square
Surface area of a sphere
Volume of a cube
Area of a trapezoid

10. Pi has only been calculated to about
one billion digits. True or false?
True
False

11. Who is credited with being the first to
use the Greek symbol π to represent pi?
Leonhard Euler
John von Neumann
William Jones
Archimedes

12. CORRECT!!
Obviously, since pi continues on
indefinitely, there are more than 10
digits of pi
Pi Day’s official website lists the
first million digits of pi

13. CORRECT!!
Pi Day is on March 14th
because, when written
in month/date form,
March 14th is 3/14, the
first three significant
values of pi

14. CORRECT!!
That statement was false. In
truth, pi is found by dividing a
circle’s circumference by its
diameter

15. CORRECT!!
Tau is the 19th letter of
the Greek alphabet and
is written τ
More on Tau

16. CORRECT!!
The first recorded Pi
Day happened at the
San Francisco
Exploratorium

17. CORRECT!!
That statement was true. Irrational
numbers are numbers that cannot be
written as a ratio of two numbers. Since
pi indefinitely continues, it cannot be
written exactly as a fraction, only as an
approximate fraction like 22/7

18. CORRECT!!
Larry Shaw was a
physicist at the San
Francisco Exploratorium
where the first Pi Day
was hosted
More on Pi Day and
its celebrations

19. CORRECT!!
Any formulas
involving circles or
spheres, including
cylinders and cones
with circular bases,
will involve pi

20. CORRECT!!
That statement was false. It is estimated that as many
as a trillion digits of pi has been calculated at this point
Pi’s 2 quadrillionth
digit

21. CORRECT!!
Although William Jones
was the first to use the
traditional pi symbol,
Leonhard Euler
popularized its use

22. INCORRECT!
Go back and try again!

23. THE END