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Pi Meanings
Pi Formulas/Pi
Pi Trivia
Circle
100
The definition of pi
What is the ratio of a circle’s circumference to its diameter?
100
The formula for area of a circle
What is A=πr^2?
100

The value of pi fits into this classification of numbers.

What is irrational?

100

The degrees of a circle

What is 360 degrees?

200
An approximate value of pi, correct to two decimal places
What is 3.14 ?
200

The formula for circumference of a circle

What is C = 2πr or C = πd?

200

The height of which animal (from foot to shoulder) is equal to 2π times the diameter of its foot

What is an elephant?

200

The difference between a circle and a sphere

What is 2D and 3D shape?

300
An approximate value of pi, in fractional form
What is 22/7?
300

The formula for volume of a cylinder

What is V = πr^2h ?

300
The U.S. state in which a bill was introduced to legislate the value of pi
What is Indiana?
300

The area of a circle with a radius of 3. 

What is 28.26?

400
∏ is a letter from the alphabet of this language
What is Greek ?
400

First 10 digits of pi?

3.141592653

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.)
400

The circumference of a circle with the diameter of 5.

What is 15.7?

500
∏ is the ____ letter of the alphabet. (1st, 2nd, 3rd, etc.)
What is 16th?
500

Symbol of (pi) ?

See MRS.K

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)
500

The volume of a circle with a radius of 2 and height of 6.

What is 150.72?