Show:
Pi Basics
Pi Days
Pi Formulas
Pi Jokes
Pi Trivia
100

The definition of pi.

What is the ratio of a circle’s circumference to its diameter?

100

Pi Day is celebrated on this date.

What is March 14? (3.14)?

100

The formula for area of a circle

What is

A=pir^2

?

100

This is what you get when you divide the circumference of a jack-o-lantern by its diameter.

What is pumpkin pi?

100
The value of pi fits into this classification of numbers.
What is irrational?
200

An approximate value of pi, correct to two decimal places.

What is 3.14?

200

This famous mathematician’s birthday is on the same date as Pi Day.

Who is Albert Einstein?

200

The formula for circumference of a circle.

What is

C=2pir

 or 

C=pid

200
This is what you get when you divide the circumference of green cheese by its diameter.
What is moon pi?
200
The height of which animal (from foot to shoulder) is equal to 2π times the diameter of its foot
What is an elephant?
300

An approximate value of pi, in fractional form.

What is 22/7?

300

The best time of day to celebrate Pi Day, according to the third, fourth, and fifth digits following the decimal

What is 1:59?

300

The formula for volume of a cylinder

What is

V=pir^2h

 ?

300
This is what you get when you divide the circumference of the sun by its diameter.
What is pi in the sky?
300

The U.S. state in which a bill was introduced to legislate the value of pi.

What is Indiana?

400

∏ is a letter from the alphabet of this language.

What is Greek?

400

A date during the summer which could be another good time for Pi Day

What is 22nd of July? (22/7)?

400

DAILY DOUBLE! The formula for surface area of a cylinder.

What is 

S = 2pirh+2pir2h

?

400
This is what you get when you divide the circumference of a bowl of ice cream by its diameter.
What is pi a’ la mode?
400

The number of centuries for which the letter pi has been used to represent this special mathematical ratio.

What is 3? (This use of the letter pi first showed up in mathematical writings in about 1706!)

500

∏ is the ____ letter of the alphabet. (1st, 2nd, 3rd, etc.)

What is 16th?

500

Another date to celebrate Pi Day—the 314th day of the year

What is November 10 (or November 9 in leap years)?

500

The formula for volume of a cone.

What is 

V=1/3pir^2h

?

500
This is what you get when you divide the circumference of a bovine by its diameter.
What is cow pi?
500

One of two ancient countries in which a value for pi was probably first used to calculate the area of a circle.

What is Babylon or Egypt? (probably as early as 2000 or 3000 BC)