# Pi Day Trivia

26 de Apr de 2018
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### Pi Day Trivia

• 2. What are the first ten digits of pi? 3.1415926535 3.1415627396 3.1423765835 3.1416834729
• 3. What is the official date of Pi Day? May 18th July 22nd March 14th April 7th
• 4. Pi is found by dividing radius by diameter. True or false? True False
• 5. What is the Greek letter used to represent 2 times pi? Theta Rho Phi Tau
• 6. When was the first recorded Pi Day celebrated? 2001 1962 1988 1999
• 7. True or false: Pi is an irrational number. True False
• 8. Who is credited with hosting the first Pi Day? Larry Shaw Leonhard Euler Albert Einstein Robert McClear
• 9. Which of the following formulas include pi? Perimeter of a square Surface area of a sphere Volume of a cube Area of a trapezoid
• 10. Pi has only been calculated to about one billion digits. True or false? True False
• 11. Who is credited with being the first to use the Greek symbol π to represent pi? Leonhard Euler John von Neumann William Jones Archimedes
• 12. CORRECT!! Obviously, since pi continues on indefinitely, there are more than 10 digits of pi Pi Day’s official website lists the first million digits of pi
• 13. CORRECT!! Pi Day is on March 14th because, when written in month/date form, March 14th is 3/14, the first three significant values of pi
• 14. CORRECT!! That statement was false. In truth, pi is found by dividing a circle’s circumference by its diameter
• 15. CORRECT!! Tau is the 19th letter of the Greek alphabet and is written τ More on Tau
• 16. CORRECT!! The first recorded Pi Day happened at the San Francisco Exploratorium
• 17. CORRECT!! That statement was true. Irrational numbers are numbers that cannot be written as a ratio of two numbers. Since pi indefinitely continues, it cannot be written exactly as a fraction, only as an approximate fraction like 22/7
• 18. CORRECT!! Larry Shaw was a physicist at the San Francisco Exploratorium where the first Pi Day was hosted More on Pi Day and its celebrations
• 19. CORRECT!! Any formulas involving circles or spheres, including cylinders and cones with circular bases, will involve pi
• 20. CORRECT!! That statement was false. It is estimated that as many as a trillion digits of pi has been calculated at this point Pi’s 2 quadrillionth digit
• 21. CORRECT!! Although William Jones was the first to use the traditional pi symbol, Leonhard Euler popularized its use

### Notas do Editor

1. Made by Kelly Luck for EDCI 232 Contains 10 questions: 3 T/F and 7 multiple choice
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