Pi Day Quiz

What ratio does Pi represent in mathematics?

• The ratio of a circle's radius to its diameter

• The ratio of a circle's diameter to its circumference

• The ratio of a circle's circumference to its diameter

• The ratio of a circle's area to its circumference

Where was the first Pi Day celebrated?

• MIT

• San Francisco Exploratorium

• Harvard University

• The Smithsonian

In what year did the US Congress officially recognize March 14th as Pi Day?

• 1988

• 2015

• 2009

• 2000

What special time on Pi Day 2015 represented the first 10 digits of Pi?

• 3:14:15 PM

• 9:26:53 AM

• 3:14:15

• 9:26:53 PM