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 10 in

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
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 4 cm

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 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-napple Pi-e
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

A phrase means close your mouth

What is "Shut your Pie-hole!"

400
This is what a mathematician does with her papers
What is a pi-le papers
400

This is the area of a circle with a diameter of 4 in

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 2pi

400

An Italian's favorite dish

What is a Pizza Pie 

500
This is what the mathematician put into her gourmet cookies.
What is s -pi-ces
500

This is the area of a circle with a radius of 5 cm

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

This phrase means something is very simple… and also very delicious!

What is "easy as pi e?"

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