Pi Day Trivia Questions and Answers
How much do you know about this mathematical constant Pi and why its celebrated? See our collection of Pi day trivia questions and answers to find out.
Pi Day is celebrated by math enthusiasts and students around the world as a way to learn about and appreciate the mathematical constant pi.
Many schools and organizations hold Pi Day events and activities, such as pieeating contests, pi recitation contests, and maththemed games and puzzles.
Pi day is also a popular time for math educators to introduce students to the concept of pi and its importance in mathematics.
For more educating trivia quiz, see Maths Quiz Questions with Answers, and Candy Trivia Questions and Answers.

Pi Day Trivia Questions and Answers
 1. What is the date of Pi Day celebration?
 2. How many digits of pi are currently known?
 3. What is the Greek letter for pi?
 4. What year was the first Pi Day celebration held?
 5. Who created pi?
 6. Who first calculated the value of pi?
 7. Is there any significance to the number 22/7 in relation to π?
 8. In what year did mathematician William Jones first use the symbol ‘π’ for pi?
 9. What do circles have to do with calculating pi?
 10. What type of number is π?

Pi Day Quiz Questions and Answers
 11. Who in the movie Star Trek episode "Wolf in the Fold," foils the evil computer by commanding it to compute to last digit the value of pi?
 12. Who holds the record for memorizing the first 70000 pi numbers?
 13. In whose trial did an FBI agent and the defense attorney argue over the actual value of pi?
 14. What is the significance of pi in mathematics?
 15. How many numbers of pi did Ludolph van Ceulen calculate?
 16. What is the mathematical formula for finding the circumference of a circle using the value of pi?
 17. In what year was Pi Day officially recognized as a holiday by the U.S. House of Representatives?
 18. What is the name of the supercomputer used by the Japanese scientist to calculate the value of pi to more than 2.5 trillion decimal places?
 19. What is an irrational number?
 20. How is the value of pi used in everyday life?

The Value Of Pi To The Nearest
 21. What is the value of pi to the nearest hundredth?
 22. What is the value of pi to the nearest thousandth?
 23. What is the value of pi to the nearest ten thousandth?
 24. What is the value of pi to the nearest hundred thousandth?
 25. What is the value of pi to the nearest millionth?
 26. What is the value of pi to the nearest ten millionth?
Pi Day Trivia Questions and Answers
1. What is the date of Pi Day celebration?
Answer: Pi Day is celebrated on March 14th.
2. How many digits of pi are currently known?
Answer: As of 2021, the value of pi has been calculated to over 22 trillion digits, but the first few digits are 3.14159265358979323846…
3. What is the Greek letter for pi?
Answer: The Greek letter for pi is π (pronounced "pí").
4. What year was the first Pi Day celebration held?
Answer: The first Pi Day celebration was held in 1988 at the Exploratorium in San Francisco, California.
5. Who created pi?
Answer: No one knows who created Pi, but God is the source of all knowledge. The knowledge of Pi would have been revealed to someone in ancient times by God.
6. Who first calculated the value of pi?
Answer: The ancient Greeks are credited with calculating the value of pi to several decimal places. In particular, the mathematician Archimedes is known for using geometric techniques to estimate the value of pi to be between 3.1408 and 3.1429.
7. Is there any significance to the number 22/7 in relation to π?
Answer: Yes! 22/7 is a rational approximation of π; it's accurate up to two decimal places (3.14).
8. In what year did mathematician William Jones first use the symbol ‘π’ for pi?
Answer: Mathematician William Jones first used the symbol 'π' for pi in 1706 when he published his book Synopsis Palmariorum Matheseos Universalis (Summary of Universal Mathematics).
9. What do circles have to do with calculating pi?
Answer: Circles have a very important role when calculating pi because they use circumference divided by diameter to find its value  that’s why we celebrate Pi Day on March 14th!
10. What type of number is π?
Answer: Pi is an irrational number, meaning that it cannot be represented as a fraction or in decimal form. Instead, it is represented by an infinite sequence of numbers that begins with 3.14 and continues on infinitely.
Pi Day Quiz Questions and Answers
11. Who in the movie Star Trek episode "Wolf in the Fold," foils the evil computer by commanding it to compute to last digit the value of pi?
Answer: Spock
12. Who holds the record for memorizing the first 70000 pi numbers?
Answer: As of 2022, the record for memorizing the most digits of pi belongs to Rajveer Meena, who recited 70,000 digits of pi from memory in just over nine hours.
13. In whose trial did an FBI agent and the defense attorney argue over the actual value of pi?
Answer: O.J. Simpson trial
14. What is the significance of pi in mathematics?
Answer: Pi is a mathematical constant that appears in a wide range of mathematical formulas, particularly those related to circles and circular geometry. It is also a fundamental concept in trigonometry, as it appears in the formula for the sine function.
15. How many numbers of pi did Ludolph van Ceulen calculate?
Answer: He calculated 35 digits of pi (which were named the Ludolphine Number)
16. What is the mathematical formula for finding the circumference of a circle using the value of pi?
Answer: The formula for finding the circumference of a circle using the value of pi is C = 2πr, where C is the circumference, r is the radius of the circle, and π is the value of pi.
17. In what year was Pi Day officially recognized as a holiday by the U.S. House of Representatives?
Answer: Pi Day was officially recognized as a holiday by the U.S. House of Representatives in 2009.
18. What is the name of the supercomputer used by the Japanese scientist to calculate the value of pi to more than 2.5 trillion decimal places?
Answer: T2KTsukuba System
19. What is an irrational number?
Answer: An irrational number is a real number that cannot be represented as a simple fraction. Pi is an example of an irrational number, as its decimal representation goes on indefinitely and does not repeat in a regular pattern.
20. How is the value of pi used in everyday life?
Answer: The value of pi is used in a variety of everyday applications, including construction, engineering, and geometry. It is used to calculate the circumference and area of circles, as well as the volume of cylinders and spheres. It is also used in trigonometry to calculate the values of sine, cosine, and tangent functions.
The Value Of Pi To The Nearest
21. What is the value of pi to the nearest hundredth?
Answer: The value of pi to the nearest hundredth is approximately 3.14.
22. What is the value of pi to the nearest thousandth?
Answer: The value of pi to the nearest thousandth is approximately 3.141.
23. What is the value of pi to the nearest ten thousandth?
Answer: The value of pi to the nearest ten thousandth is approximately 3.1416.
24. What is the value of pi to the nearest hundred thousandth?
Answer: The value of pi to the nearest hundred thousandth is approximately 3.14159.
25. What is the value of pi to the nearest millionth?
Answer: The value of pi to the nearest millionth is approximately 3.141593.
26. What is the value of pi to the nearest ten millionth?
Answer: The value of pi to the nearest ten millionth is approximately 3.1415927.
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