This is the approximate value of pi, correct to 2 decimal places.
What is 3.14
100
This is Albert Einstein's birthday.
What is March 14, 1879
100
The symbol for pi has been used regularly in its mathematical sense only for the past how many years?
What is 250 years?
100
This is the formula for the circumference of a circle
(There are 2 correct answers for this.)
What is C= 2 * pi * r
OR C= pi * diameter
100
The number of digits we knew to pi by the 20th century.
What is 500?
200
The symbol pi in mathematics represents the what of a circle's circumference to its diameter.
What is ratio
200
This is number of years pi has been known.
What is almost 4000 years
200
Pi Day is celebrated on March 14. This is the official time the celebration begins.
What is 1:59 p.m.?
200
This is the formula for the area of a circle.
What is A= pi * r * r OR pi * r squared
200
The number of digits we have calculated to pi today.
What is 10 trillion?
300
Another name by which Pi is called.
What is Circular Constant, Archimedes Constant, and/or Ludolph's Number?
300
This English mathematician introduced the symbol for pi in the year 1706.
Who is William Jones
300
This person introduced the pi symbol in 1706.
Who is William Jones?
300
This is the volume of a cylinder.
What is V = pi * r squared * h
300
The world record holder for reciting the most digits of, recited 44,000 digits in this amount of time.
What is 9 hours?
400
A number that cannot accurately be written as a simple ratio and who's decimal goes on forever
What is a rational number
400
This ancient Greek mathematician discovered the first 3 digits of pi in the year 200 B.C.
Who is Archimedes
400
In the Greek and English alphabets, pi is this letter. (HINT: The answer is a number.)
What is the sixteenth (16)?
400
When finding pi by using the circumference and diameter, this is the formula.
What is pi = C/d (pi = circumference divided by diameter.)?
400
The famous picture of Einstein sticking out his tongue, was taken on this birthday.
What is Einstein's 72nd birthday?
500
This man popularized the symbol for pi.
Who is Leonard Euler?
500
Ancient Egyptian architects possibly used pi to build this structure.
What is the Great Pyramid of Giza
500
This is the computer the calucated pi to the 1.24 trillionth digit in 2002.
What is the Hitachi SR 8000?
500
The formula for volume of a cone.
What is V = 1/3pi*r2h?
500
This was the first attempt to calculate pi by “squaring the circle,” which is to measure the diameter of a circle by building squares inside the circle.