3
Rational or not?
Irrational
definition of circumference
distance around a circle
definition of diameter
distance from one point on a circle through its center to opposite point
can pi be written as a fraction
no
Guinness world record number for most decimal digits of pi memorized
70,000
When is pi day?
Pilish
language dialect invented by literary nerds in which the number of letters in each word corresponds to a digit of pi
piphilology
mnemonic techniques that help someone to remember things
finite or infinite?
unofficial record for most number of decimal digits of pi memorized
117,000 by a Japanese
RATIO of a circle's circumference to its diameter
ancient Chinese estimated pi as this number
3
He calculated pi to 16 decimal places
Sir Isaac Newton
the invention of this allowed pi to be calculated to 500,000 decimal places
the computer
diameter times pi equals this
circumference
He used the Pythagorean theorem to calculate pi
Archimedes (Greek mathematician)
Babylonians though this number was pi
3-1/8
He calculated pi to 127 decimal places
French mathematician Thomas Fantet de Lagny
These people knew of pi almost 4,000 years ago
the first pi party was held here
Exploratorium Museum in SF
a number that has the same frequency of all the digits
normal number
not yet, no one has created a proof yet
22,459,157,718,316 digits
Peter Trueb, a scientist at a Swiss company, used a computer to calculate pi
two times pi is this
tau
ratio of circumference to radius of a circle
tau