Pi Riddles
Do the Math
(use 3.14 for Pi)
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 time Pi times 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
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

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 green cheese and divide it by its diameter 🌛

What is Moon Pi-e

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 ten inches

What is 78.5 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

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 mathematicians use to flavor food.

What is s-pi-ces

500

This is the radius of a circle with an area of 113.04 square centimeters.

What is 6 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

What's wrong with the equation Pi r squared? 🥧

Well...pies are round of course and cakes are square!

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