Pi Facts
In order to measure the circumference of a circle, you multiply pi by the radius times two or this.
What is the diameter?
What is the circumference formula for a circle?
What is C=2πr or C=2d?
The _______ used 3.125 to approximate pi in 2000 BCE.
Who are the Babylonians?
This the connection between Albert Einstein and Pi Day
What is a birthday on March 14th?
What kind of number is pi?
(This is a number that cannot be expressed as a fraction of two integers)
What is an irrational number?
What is the formula for the area of a circle?
What is A=πr2?
_____ ____ is known as the "Prince of Pi" and invented the holiday Pi Day in 1988 while at the Exploratorium.
Who is Larry Shaw?
Who did the first calculation of pi?
Who was Archimedes of Syracuse?
Pi got its name from the Greek word for this.
What is the "perimeter"?
What is the formula for the volume of a cylinder?
What is V=πr2h?
Archimedes approximated the area of a circle by using the _______ ________.
What is the Pythagorean Theorem?
This man adopted the symbol of pi in 1737 and made it popular.
Who is Leonhard Euler?
This fraction is used to represent the first few digits of pi.
What is 22/7?
What is the formula for the volume of a cone?
What is V=πr2h(1/3)?
The first ten digits of pi are _._ _ _ _ _ _ _ _ _?
What is 3.141592653?
When did mathematicians began using the Greek letter π?
In the 1700's.
What was used by the Egyptians as the first attempt to calculate pi by “squaring the circle” (c. 1650 B.C.)?
What was the "Rhind Papyrus"?
What is the formula for the volume of a sphere?
What is V=(4/3)πr3?
The Guinness World Record for reciting the most digits of pi belongs to ______ _____ of India, who recited pi to __,___ decimal places (while blindfolded) in 2015.
Who is Rajveer Meena?
What is 70,000 decimal places?
Which number is the most commonly occurring number in the first 100,000 decimal places of pi?
(It occurs 10,137 times)
What is the number One?