80 Fun Pi Day Trivia Questions With Answers

What mathematical constant is celebrated on Pi Day?

On what date is Pi Day celebrated each year?

What is the approximate value of Pi rounded to two decimal places?

Who was the first mathematician to calculate Pi accurately?

What shape is closely associated with Pi?

Pi Day also celebrates which famous scientist’s birthday?

Which U.S. House of Representatives resolution officially recognized Pi Day?

Pi is an example of what type of number?

Who holds the record for reciting the most decimal places of Pi?

What year was the first official Pi Day celebrated?

What is the record-breaking number of decimal places of Pi calculated in 2021?

In which city was the first official Pi Day celebration held?

Pi is often represented by which Greek letter?

Which famous physicist once used Pi in calculating the circumference of Earth?

Which field of science uses Pi to calculate wave functions?

Pi is crucial in determining the area of what geometric shape?

What mathematical formula uses Pi to find the circumference of a circle?

What ancient civilization used an early approximation of Pi?

Which scientist’s constant does Pi frequently appear with in physics equations?

How many digits of Pi are sufficient to calculate the circumference of the observable universe accurately?

Which famous mathematician referred to Pi as the 'transcendental number'?

What is the formula for the area of a circle that uses Pi?

Pi is known to be what type of mathematical constant?

Which organization calculates Pi to trillions of decimal places for fun and research?

The symbol for Pi (π) was first used by which mathematician?

What is the fraction often used to approximate Pi?

How many digits of Pi were known by the year 1900?

Pi appears in the formula for which 3D geometric shape's volume?

What is the term for numbers that never end and never repeat, like Pi?

Which famous ancient mathematician used polygons to approximate Pi?

What is the smallest number Pi is greater than?

What type of number is Pi: terminating or non-terminating?

How often does the digit '7' appear in the first 100 digits of Pi?

Pi Day is sometimes celebrated by eating what type of food?

The first million digits of Pi contain how many '3's?

What notable event occurred on Pi Day in 2018?

Pi is commonly used to calculate the area of which celestial body?

In 2019, Google calculated Pi to how many decimal places?

Which famous literary work contains a passage with an approximation of Pi?

Pi is an essential constant in which branch of mathematics?

Who is the famous scientist born on Pi Day in 1879?

The earliest known written approximation of Pi was recorded by which ancient civilization?

What is the first non-zero digit after the decimal point in Pi?

Pi was first proven to be irrational by which mathematician?

Which famous Indian mathematician calculated Pi to many decimal places in the 5th century?

Pi can be found in the formula for the surface area of which 3D shape?

Which famous irrational number is closely related to Pi through Euler’s identity?

How many digits of Pi were memorized by Rajveer Meena to set a world record?

What is the mathematical term for the distance around a circle, which involves Pi?

Pi is used in trigonometry to calculate angles in which measurement system?

Pi Day is celebrated on March 14th because the date resembles which digits of Pi?

What is the approximate value of Pi up to five decimal places?

The first 31 digits of Pi contain which repeating digit the most?

What is the Greek letter used to represent Pi?

Pi is the ratio of a circle's circumference to its what?

What ancient Chinese mathematician calculated Pi to an accuracy of seven decimal places?

What is the term for the digits of Pi that continue infinitely without repetition?

Which type of mathematical series can be used to approximate Pi?

Pi appears in the formula for which branch of physics?

In 1706, who first assigned the Greek letter π to represent Pi?

In what year was the first official Pi Day celebrated?

Which famous scientist first estimated Pi to be between 3 1/7 and 3 10/71?

Which U.S. state recognized March 14th as Pi Day by legislation in 2009?

What is the term for a circle's distance across, passing through the center?

Which organization holds an annual Pi Day contest for reciting Pi digits?

In what base system is Pi represented as 3.243F6A8885?

What is the symbolic significance of the Pi Day time, 1:59 PM?

Pi is crucial for calculating the volume of which 3D shape?

What mathematical constant is the ratio of a circle’s circumference to its diameter?

Pi is used in which branch of mathematics that studies shapes and spaces?

What type of number is Pi, meaning it cannot be written as a fraction?

What is the value of Pi rounded to the nearest hundredth?

Who used a 96-sided polygon to approximate the value of Pi?

In what century was the first rigorous proof that Pi is irrational developed?

Pi is used in which formula to find the area of a circle?

Which 20th-century physicist suggested using Pi to detect extraterrestrial life?

What is the formula for the circumference of a circle using Pi?

Which famous mathematician derived Pi using infinite series in the 17th century?

What is the term for the infinite nature of Pi’s decimal representation?

Which branch of mathematics studies Pi as part of complex number analysis?