Circle Math
The distance across a circle through the center.
What is the diameter?
A round object on a car that uses Pi when calculating its circumference.
What is a wheel or tire?
This type of dessert is often eaten on Pi Day
What is pie?
This number represents the ratio of a circle’s circumference to its diameter.
What is Pi?
What is the second most popular pie to eat on thanksgiving.
Apple pie
The distance around a circle.
What is the circumference?
This object in classrooms often has a circular shape and shows time.
What is a clock?
This movie starring Sean Connery and Nicolas Cage features Pi as part of a treasure hunt in a famous circle-shaped code.
: What is National Treasure?
The first three digits of Pi are this.
What is 3.14?
Even though Pi is infinite, most calculations only need this many digits for everyday math.
what is 3.14
The formula used to find the circumference of a circle using the diameter.
What is C = πd?
Engineers use Pi when designing this circular building feature that allows light inside.
What is a dome?
Pi appears in the title of a movie about a mathematician obsessed with patterns in the universe.
What is Pi (1998 movie)?
Pi is considered this type of number because its decimal never ends and never repeats.
What is an irrational number?
Pi is used in math, engineering, physics, and even computer science to calculate this type of shapes or objects.
What are circular or curved objects?
The formula used to find the area of a circle.
What is A = πr²?
Bakers often use this circular pan when celebrating Pi Day.
What is a pie pan?
This famous comic strip character once celebrated Pi Day with a pie-eating contest.
Who is Garfield?
The symbol used to represent Pi.
What is
People who memorize large numbers of Pi’s digits are called memorizers of Pi or this fun term.
What is a “piphilologist”?
If the diameter of a circle is 10, this is the approximate circumference.
What is about 31.4?
NASA uses Pi when calculating the paths of these objects traveling around planets.
What are orbits?
Every year on Pi Day, social media challenges pop up where people share pictures of circular objects, clever Pi puns, or even this activity involving eating a dessert.
What is a pie-eating contest?
The holiday celebrating Pi is observed on this date.
What is March 14th?
Google once calculated Pi to over this many digits: trillions or hundreds?
What is trillions?