What is π?

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

• π is a type of fruit.
• π is the square root of 2.
• The ratio of a circle's' diameter to its circumference.

What are the first three digits of pi?

Where did pi come from?

• Pi was made in Betty Crocker's home kitchen

• Pi was found by Christopher Columbus

• Pi is a type of fruit found in tropical regions.
• 2000 bc, sightings were first seen in ancient egypt and babylon

Are you enjoying the video lesson?

• Yes

• No

What is the symbol used for pi?

• π
• Σ

• Γ

• Ρ

How many digits do we know of pi (because of computers?)

• approximately 0

• over 10 trillion

• under 10 trillion

• approximately 37

How is pi used in the real world? Select all that apply.

• Aviation flight time, fuel use, and GPS.

• Biochemists use pi to understand DNA.

• Engineering buildings and airplanes.

• Exploring Planets.

What day of the year is pi day celebrated?

• February 14th
• July 4th

• March 15th

• March 14th