Pi Day Definitions
From the center of a circle to the outside is called what?
Radius
A cheesy Italian dish that's a round favorite worldwide.
Pizza
This is the connection between Albert Einstein and Pi Day.
Birthday on March 14th
What's the math teacher's favorite dessert?
Pi
Pi itself can be defined as the ratio between a circle's circumference to this
Diameter
The smallest finger on your hand – oddly, it starts with 3.14.
Pinkie
In the 1967 Star Trek episode "Wolf in the Fold", an out-of-control computer is contained by being instructed to do this
What is computing the last (or all) digits of pi
Why did pi fail its driving test?
Because it didn't know when to stop.
True or False:
Pi is an infinite and non-repeating decimal.
True
An outdoor meal on a blanket – ants might crash it.
Picnic
Why could July 22 be considered Pi Day?
July is the 7th month. The 22nd day of the 7th month can be written as 22/7, which is approximately 3.14
What is a mathematician’s favorite snake?
A Pi-thon (python)
The set of all points that are equidistant from the center is called
Circle
A festive party object you smash open for candy.
Piñata
Pi was used to hide secret messages in this war
In World War II, the Allies used pi to encode messages sent between the US and the UK.
Why should you never start talking to pi at a party?
Because it goes on forever.
What are the first six digits of pi?
3.14159
Winnie-the-Pooh’s little porcine friend – or any baby hog.
Piglet
When was the symbol pi (π) first used?
The symbol for pi (π) was first used by William Jones in 1706, and popularized by Leonhard Euler.
What are 3.14% of sailors?
PI-rates (pirates)
What is pi classified as in the real number system?
Irrational
Leafy green that gave Popeye his super strength.
Spinach
Pi got its name from the Greek word for this
The mathematical constant π (pi), got its name from the Greek word "periphery" (Perimeter), which is the first letter of the Greek word for periphery (περιφέρεια)
What do you call it when someone gets a huge tattoo of pi on their face?
An irrational decision.
What is the formula for finding the circumference of a circle?
C = 2*pi*r or C = pi*d
A curve winding around a center point – it goes round and round infinitely.
Spiral
People in Egypt believed that this pyramid was built on the principles of pi.
The pyramids of Giza.
What do you get when you divide a jack-o-lantern by its diameter?
Pumpkin pi
What is the formula for finding the area of a circle?
A=pi*r2
Variety, seasoning, or “zing” – you might add this to food for flavor.
Spice
True or False:
If you write down your life and turn it into numbers, you can find that number in the digits of pi.
TRUE. The digits of pi contain all possible sequences of numbers. Otherwise pi would not be irrational.
What did PI say when asked to explain again what pi is?
I don't want to repeat myself.