The number pi
What number is most commonly associated with pi?
3.14
Over 4,000 years
How is pi calculated?
Circumference / Diameter
An oval is a circle
False
What famous scientist was born on pi day?
Albert Einstein
What fraction is most commonly related with pi?
22/4
Who is famous for his work with pi in ancient Sicily?
Archimedes
Find the circumference of a circle with a diameter of 5 inches
C = 3.14 x 5
C = 15.7 inches
Name a 3D figure that has a circle for a base
Cylinder or Cone
The world's largest pie was a ___________ pie
cherry
What type of number is pi?
(Natural, Integer, Rational, Irrational)
Pi is an irrational number
Who discovered pi to be irrational in 1768?
John Lambert
Find the circumference of a circle with a radius of 3 cm
C = 2pi x r
C = 2 x 3.14 x 3
C = 18.84 cm
The radius is _________________ of the diameter
half
The world record holder took over ____________ (amount of time) to recite over 44,000 digits of pi
9 hours
Fill in the blank:
3.1415_26535 . . .
9
Pi is found in a list of specifications for the _____________ built in 950 BC
Temple of Solomon
Find the area of a circle with a radius of 7 mm
A = pi x r2
A = 3.14 x 7^2
A = 3.14 x 49
A = 153.86
The diameter is ______________ of the size of the radius
twice
Pi day begins at precisely _______________
(date and time)
1:59 pm on March 14
In the first 100,000 digits of pi, which number occurs most frequently?
1
In the Egyptian Rhind Papyrus, pi was found to have this value
3.16
Find the area of a circle with a diameter of 11 feet
A = pi x r2
A = 3.14 x 5.5^2
A = 3.14 x 30.25
A = 94.985
Name the instrument used to draw a perfect circle
Compass
How many places of pi are known?
1.2411 trillion