Celebrating π – Trivia Quiz ANSWERS 1.Which letter of the Greek alphabet is π? the 16th 2.Which of the following is NOT true? a. There is a movie named PI b. There is a German car named PI c. There is a perfume/cologne named PI 3.T or F? The Bible uses a value of 3 for π TRUE. “And he made a molten sea, ten cubits from the one brim to the other: it was round all about,.. and a line of thirty cubits did compass it about.” (I Kings 7, 23)

4.How many digits of π are currently known? As of October 17, 2011, the record has been improved to 10 trillion (!!) digits. 5.What’s the record for most memorized places of PI? 42,000! Hiroyuki Goto took more than 9 hours to set this record in UPDATE – JUST IN!! Sent by subscriber son-in-law Joshua Walters: According to the Pi World Ranking List, the world record is held by Chao Lu, who can recite the number to 67,890 digits. 6 Which US city has the Zip Code 31415? Savannah, GA 7.Who has the phone number ? ???? Note: This would be the St. Louis area code, but I think the leading 1 on the 159 keeps it from being a ‘legal’ phone #. (I’ve actually had students call(!!) – with no success. By the way, what I’d really like to know is who has !! Anyone know why?

8.What’s the neatest football cheer involving PI? MIT Football Cheer: Cosine, secant, tangent, sine Integral, radical, u dv Slipstick, slide rule, MIT ! 9.What famous formula uses not only PI, but 4 other important constants as well? (Some people say the five most important constants in math...all in the same formula!) e iπ – 1 = 0