Pi Meanings
Pi Day
Pi Humor
Pi Formulas
Parts of Circle
100
This is the digits of pi approximate to 2 decimal places.
What is 3.14
100
This is the country Albert Einstein was born in.
What is Germany?
100
The symbol for pi has been used regularly in its mathematical sense only for the past how many years?
What is 250 years?
100
This is the formula for the circumference of a circle? (There are 2 correct answers for this.)
What is C= 2 * pi * r OR C= pi * diameter
100

The distance around the circle. 

What is the circumference?

200

The symbol pi in mathematics represents the what of a circle's circumference to its diameter.

What is ratio

200
At the age of 17,Einstein failed what? Be specific
What is the university entrance exam?
200
Pi Day is celebrated on March 14. This is the official time the celebration begins.
What is 1:59 p.m.?
200
This is the formula for the area of a circle.
What is A= pi * r * r OR pi * r squared
200

From the center of the circle to the outside of the circle. 

What is a radius? 

300
Another name by which Pi is called.
What is Circular Constant, Archimedes Constant, and/or Ludolph's Number?
300

At a very young age Albert was presented a what for a birthday gift?

What is a compass?

300

This person introduced the pi symbol in 1706.

Who is William Jones?

300

This is the volume of a cylinder.

What is V = pi  r2  h

300

The distance from one side of a circle to the other side passing through the center.

What is a diameter? 

400

A number that cannot accurately be written as a simple ratio and whose decimal goes on forever

What is an irrational number

400
This is the instrument that Einstein played.
What is the violin?
400

In the Greek and English alphabets, pi is this letter. (HINT: The answer is a number.)

What is the sixteenth (16)?

400

When finding pi by using the circumference and diameter, this is the formula.

What is pi = C/d (pi = circumference divided by diameter.)?

400

The name of a line segment that connects two points on a circle but does not pass through the center.

What is a chord? 

500

This man popularized the symbol for pi.

Who is Leonard Euler?

500
What is the year of Einstein's passing?
What is 1955?
500

If you divide a jack-o-lantern's circumference by its diameter, you get this.

What is pumpkin pi? 

500

This knight was the roundest knight at King Arthur's round table. (He acquired his size from too much pi.)

Who is Sir Cumference?

500

The ratio between the radius and the diameter.

What is 1:2 or half? 

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