History
Why were mathematicians excited about March 14th, 2015 at 9:26 with 53 seconds?
It represents the first ten digits of Pi.
Who was Archimedes of Syracuse?
The man who invented Pi.
When is Pi day?
March 14th
Is Pi even or odd?
Neither
What are the first five digits of Pi?
3.1459
When did Pi become commonly used by mathematicians?
18th century
What did Larry Shaw do?
He founded Pi day.
What does Pi day represent?
The ratio of circumference to diameter.
Which scientist shares a birthday with Pi day?
Albert Einstein
If you multiply Pi by the square of the radius of a circle, what do you get?
The circle's area.
In September, of 1999, the value of Pi was calculated to record how many decimal places?
206 Billion
Who invented the symbol of Pi?
William Jones
Pi is described as what type of number?
An irrational number.
What number is Pi in the Greek alphabet?
Pi is the 16th letter
The radius of a circle is 6 inches. What is the area?
113.097 in2
What year was Pi day invented?
1988
Who was the first person to get the first four decimals correct?
James Gregory
Pi is used to find the area.
Which number appears most in the first 6 billion decimal places of Pi?
The number 1.
What is 270 degrees in radians?
3 pi/ 2
In 1900 BC, who found the first known value of Pi?
The Babylonians
Who is referred to as the father of Pi?
Leonhard Euler
How do you find the area of a circle?
By multiplying the radius squared times pi.
Who broke the world record for memorizing the most digits of Pi?
Lu Chao
A circle has a radius of 23 cm.Which is the best estimate for the circumference of the circle?
87.98 in2