Pi Day!

True or False: Pi is the most recognized mathematical constant in the world.

• True

• False

Pi equals...

• 3.14159...

• 3.14239...

• 3.14897...

• 3.14888...

Pi is the _______ letter in the Greek alphabet

• 12

• 16

• 6

• 8

Who,in 1706, first gave the Greek letter “pi” its current mathematical definition?

• Albert Einstein

• Attila the Hun

• William Jones

• Archimedes

What is the “formal” definition of pi?

• the ratio of a circle’s circumference to its diameter

• the radius of a circle

• 3.1415926

• the surface area of a sphereof diameter 22/7

Whose birthday happens to be on Pi Day?

• Archimedes

• Galileo

• Plato

• Albert Einstein

True or False: GPS uses pi to calculate positions on earth

• false

• true

In what century was the number Pi formally defined and notated as we know it today?

• In the 5th century BC

• In the 10th century

• In the 17th century

• In the 19th century

The first known celebration of Pi Day was organized by Larry Shaw in 1988 and took place in:

• Boston, MA

• San Francisco, CA

• New York City

• Chicago, IL

What is the earliest known reference to pi in history?

• Rosetta Stone (200BC)

• Egyptian papyrus scroll (1650 BC)

• The Bible

• Euclid's Elements (3rd century BC)