Pi Riddles
Do the Math
Pi Facts
Pi Formulas
Pi Puns
100
This is what you call a mathematician that takes over a ship.
What is a pi-rate
100
This is the circumference of a circle with a diameter of ten inches.
What is 31.4 inches
100
Pi is the ratio of a circle's circumference to this measurement.
What is the diiameter
100

This is the formula to find the circumference of a circle

What is Pi times the diameter or 2 times pi times radius

100

Why should you never argue with Pi?

It's completely irrational

200
This is what a mathematician needs to fly his plane.
What is a Pi-lot's License
200
This is the circumference of a circle with a radius of four centimeters
What is 25.12 centimeters
200
This is a number that cannot be expressed as a fraction of two integers
What is an irrational number
200

This is the formula for finding the area of a circle

What is pi times the radius squared

200
This is what you get when you divide a Jack-o-Lantern by its diameter.
What is Pumpkin Pi-e
300

This is a mathematician's favorite fruit.

What is Pi-napple

300
This is the diameter of a circle with a circumference of 28.26 ft.
What is 9 ft.
300
Pi got its name from the Greek word for this
What is perimeter
300
Given the circumference, this is the formula to find the diameter
What is circumference divided by pi
300

What is Sir Isaac Newton's favorite dessert?

What is Apple Pie

400

Why should you never start talking to Pi at a party?

Because it just goes on forever.

400
This is the area of a circle with a diameter of four inches
What is 12.56 square inches
400
He is credited with determining a remarkably accurate approximation of pi in earliest times
Who is Archimedes of Syracuse
400
Given the circumference, this is the formula to find the radius
What is circumference divided by pi divided by two
400

This is what you get when you take the sun and divide its circumference by it by its diameter

What is Pi in the Sky

500

Why shouldn't you eat too much pi?

You'll end up with a big circumference.

500
This is the area of a circle with a radius of five centimeters
What is 78.5 square centimeters
500
This the connection between Albert Einstein and Pi Day
What is a birthday on March 14
500

Have both teams compete to see who knows the most digits of pi (with white boards)

3.14159265358979323846264338327950

500

Why did Pi fail its driving test?

Because it didn't know when to stop

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