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 diameter?

100

This is the formula to find the circumference of a circle.

What is Pi times the diameter?

What is Pi times two times the radius?

100

This is the cutest pi there is.

What is a "Cutie Pi-e"?

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 radius time radius times pi?

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 dessert.

What is Pi-e?

What is Pi-napple Pie?

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

This is what you get when you take a celestial body and divide it by its diameter.

What is Moon Pi-e?

400

This is what a mathematician does with her papers

What is pi-le them up?

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 it by its diameter.

What is Pi-e in the Sky?

500

This is what the mathematician put into her gourmet cookies.

What are s - pi - ces?

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

Given the area of a circle, this is the formula to find the radius.

What is the square root of the area divided by pi?

500

Look at the picture that Mr. Farmer shows you.

What is octo-pi?

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