Pi History
Do the Math
About Pi
Pi Formulas
Interesting Pi
100
The first to rigoursly calculate pi.
Who is Archimedes (of Syracuse)?
100
This is the circumference of a circle with a diameter of 10 inches.
What is 10π or 31.4 inches?
100
Pi is the ratio of a circle's circumference to this measurement.
What is the diameter?
100
This is the formula to find the circumference of a circle.
What is πd?
100
A mnemonic using Pilish in 1 minute. (Every 2 words correct = 100)
Nice job! (No real answer)
200
Pi was coined (invented) by this person.
Who is William Jones?
200
This is the radius of a circle with a circumference of 19.7192 cm.
What is π or 3.14 cm.
200
This is a number that cannot be expressed as a ratio of two integers.
What is an irrational number?
200
This is the formula for finding the area of a circle.
What is πr2?
200
Six 9s in a row at the 762nd decimal digit of pi.
What is the Feynman point?
300
He proved pi was transcendental, and proved that squaring the circle was impossible.
Who is (Carl) Lindemann?
300
When the circumference is 18.85 cm, what is the diameter?
What is 6 cm?
300
Every word, if changed to numbers, is included in pi because pi has _______________.
What is random and irregular digits?
300
Given the circumference, this is the formula to find the diameter.
What is circumference/π?
300
In Pilish, Pi Jeopardy, isn't it fun-filled and interesting? stands for these numbers.
What is 2, 8, 4, 2, 3, 6, 3, 1, 1?
400
A very great mental calculator who could multiply two 100-digit in 8 hours 45 minutes.
Who is (Zacharias) Dahse?
400
Summation (upper limit: n=1; lower limit: 5) index: n2. Answer = ?
What is 55? (12 = 1, 22 = 4, 9, 16, 25)
400
This is a number that cannot be a root of a single variable polynomial equation.
What is a transcendental number?
400
The volume of a cone?
What is πr2h / 3?
400
The sum of the first 144 decimal digits of pi.
What is 666?
500
Two brothers who first calculated pi to its billionth digit.
Who are the Chudnovsky Brothers?
500
Summation (lower limit: n=1; upper limit: n=10) index: n2+n. Answer = ?
What is 440? (12+1 = 2, 22+2 = 6, 12, 20, 30, 42, 56, 72, 90, 110)
500
Can be found anywhere. Shows up everywhere.
What is ubiquitous?
500
The surface area of a sphere?
What is 4πr2?
500
The 100th decimal digit of pi.
What is 8?
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