Pi Day Facts

Pi is the ___ letter of the Greek alphabet.

• 10

• 12

• 14

• 16

Pi is an irrational number.

• True

• False

Pi Day is celebrated

• March 4

• March 14

• March 31

This seems to resemble approximate Pi.

• Eiffel Tower

• Great Pyramid of Giza

• El Castillo, Mexico

These mathematicians used polygons to compute pi:

• Archmides

• William Jones

• Lui Hui

The father of calculus is:

• Albert Einstein

• Isaac Newton

• Ludolph van Ceulen

• Alfred Hitchcock

Using _ _ decimal places of Pi will allow you to compute the circumference of a circle the size of the universe with an error no greater then the radius of a hydrogen atom.

• 29

• 30

• 49

• 39