Pi Basics
Calculate
Pi Trivia
Pie Idioms and Trivia
Radius and Diameter
101

What are the 1st three digits in Pi?

3.14

101

Circumference of a circle with diameter of 8 m.

Remember!  d x 3.14 = c

25.12 m

101

This famous man was born on Pi Day.



Thomas Edison

Albert Einstein

101

Easy as _____________________ pie.

apple

101

If the radius of a circle is 5 m, what is the diameter?

Remember r x 2 = d

10 m

200

Diameter times 3.14 = 


Circumference

Aread

Circumference


200

Circumference of a circle with diameter of 4 km.

Remember!  d x 3.14 = c

12.56 km

200

This man introduced the Greek letter pi in 1706.


William Jones

James Early Jones

William Jones

200

She's a ____________________ pie!

sweetie
200

If the radius of a circle is 12 cm, what is the diameter?

Remember r x 2 = d

24 cm

300

What is longer? Diameter or radius?

Diameter

300

Circumference of a circle with diameter of 9 cm.

Remember!  d x 3.14 = c

28.26 cm


300

This famous mathematician was the first to theoretically calculate pi.

Who is Archimedes?

300

There’s a town called Pie Town in __________________. 


New Mexico

New Hampshire

New Mexico

300

If the radius of a circle is 6 km, what is the diameter?

Remember r x 2 = d

12km

400

How many digits are in pi?

infinite

4 trillion

infinite

400

Circumference of a circle with diameter of 3 mm.

Remember!  d x 3.14 = c

9.42 mm

400

This man set the record for reciting 67,890 digits of pi.


Chau Lu

Edward Jones

Chau Lu


400

The largest pie made weighed in at ____________.


10,540 kg

1,000 kg


10,540 kg

400

If the diameter of a circle is 20 m, what is the radius?

Remember d/2 = r

10 m

500

When is Pi Day celebrated?

March 14th


3/14

500

Circumference of a circle with diameter of 11 in.

Remember!  d x 3.14 = c

34.54 in

500

Ms. Rob's favorite pie

Mrs. W's peanut butter pie
500

The most popular pie in the U.S. is ______________ pie.


cherry

apple

apple

500

If the diameter of a circle is 6 m, what is the radius?

Remember d/2 = r

3 m