Pi Trivia

What ancient Greek mathematician found the ratio between a circle's circumference and diameter?

• Archimedes

• Pythagoras

• Hypatia

• Euler

True/False: Pi is an IRRATIONAL number.

• TRUE

• FALSE

True/False: A calculation of pi occurs in the Bible.

• TRUE

• FALSE

Answer explanation

An Old Testament passage describing a cylindrical vessel built for the Temple says,

"He made the cast metal basin, 15 feet from brim to brim, perfectly round. It was 7 1/2 feet high and 45 feet in circumference." -- 1 Kings 7:23 (CSB)

The measurements 45 feet (circumference) divided by 15 feet (diameter) give a rough approximation of pi.

The symbol for pi is a _______ letter.

• Latin

• Italian

• Greek

• Spanish

When is Pi Day celebrated?

• March 14

• March 4

• March 15

• April 3

What is the official world record for memorizing and reciting pi digits?

Answer explanation

Suresh Kumar Sharma recited 70,030 digits of pi on October 21, 2015. It took him over 17 hours to complete.

Which state tried to pass a bill that would declare the value of pi to be 3.2?

• Michigan

• Illinois

• Indiana

• Iowa

Which number does NOT appear in the first 31 digits of pi?

• 0

• 8

• 7

• 2

What mathematician adopted π as the symbol for pi?

• René Descartes

• Albert Einstein

• Leonardo Fibonacci

• Leonhard Euler

Pi is the ratio of a circle's ______ and ______.

• diameter and circumference

• circumference and radius

• Radius and diameter

• circumference and diameter