Pi Day

What day is Pi Day celebrated on?

• March 31
• March 15
• March 14

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What famous scientist was born on Pi Day in 1879?

• Archimedes
• Einstein
• Galileo
• Newton

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Is pi irrational, rational, both, or neither?

• Both
• Irrational
• Rational
• Neither

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What is the "formal" definition of pi?

• 22/7
• 3.1415926
• the ratio of a circle's circumference to its diameter
• the surface area of a sphere of diameter 22/7

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What is pi used to find? 

• the perimeter of a square
• the area of a rectangle
• radius of a circle
• circumference of a circle

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How many digits are in pi?

• 10 trillion
• 5 billion 
• infinite 
• a lot 

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What do you get when you divide the circumference of a Jack-o-Lantern by its diameter?

• Pumpkin
• Jack-o-Lantern
• Pumpkin Pi
• Pi in the Sky

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Which of the following are the earliest known reference(s) to pi?    

• The Rosetta Stone and Bible
• A Middle Kingdom papyrus scroll,   by Ahmes the scribe
• Babylonian and Egyptian texts 
• Homer’s Illiad 

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What is the formal definition of pi? 

• The ratio of a circle's circumference to  its diameter
• 3.14159
• The radius of a unit circle
• The ratio of a circles diameter to its area

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Lu Chao of China set a world record by memorizing the most digits of pi. How many digits did he memorize?

• 67,890

• 68,980

• 69,760

• 60,967

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