Random
What is Pi?
History
100

What is the most popular type of pie in the United States?

Apple

100

What kind of number is pi?  

Rational or irrational 

irrational

100

What famous physicist was born on March 14th?

Einstein    or  Hawkins  or Copper  

Einstein

200

If you multiply pi by the square of the radius of a circle, what do you get?


area

200

What is the definition of an irrational number?

irrational numbers cannot be expressed as the ratio of two integers.

200

Which ancient Greek found a close estimate for pi by inscribing a 96-sided polygon inside a circle?

Plato   or  Homer  or   Cesar   or  Archimedes

Archimedes

300

What is a good fraction estimate for pi?

21/6   or   22/6   or  22/7

22/7

300

In any circle, pi is the ratio of ________ to _________?

radius / area  or  circumference / diameter    

 circumference / diameter

300

What was the first civilization to discover and use an estimate of pi?

Greek  or Babylonians  or  Roman 

Babylonians

400

The latest record for digits of pi calculated was achieved in 2021 by a supercomputer in         .

USA   or   France  or  Switzerland

Switzerland.

400

How many digits of pi did a supercomputer in 2021 find?  62 million, 62 billion, or 62 trillion?

62.8 trillion (it took 108 days!)

400

Which famous mathematician popularized the use of the Greek letter pi for the mathematical constant in 1748?

Newton  or  Gauss  or  Euler

Euler

500

What are the next 3 digits of pi after the 3.14?

159 or 156 or 157

159

500

The fastest algorithm for calculating digits of pi is based on a formula that is over 100 years old and developed by this Indian mathematician (his story was told in the movie The Man Who Knew Infinity).

Chandra   or   Ramanujan

Ramanujan

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