Pi History
This person's birthday is on Pi Day.
Who is Albert Einstein?
Any natural number and it's opposite is called this.
What is an integer?
This is the formula for the area of a circle.
What is A=𝝅r2 ?
This is the radius of a circle, who's diameter is 15 inches.
What is 7.5 inches?
The number 5,672 is rounded to this nearest tens of this number.
What is 5,670?
This is the official time the Pi day celebration begins.
What is 1:59pm?
This measurement is found by taking the distance around the circle.
What is circumference?
This is the formula for the circumference of a circle. (There are 2 correct answers for this)
What is C= 2𝝅r OR C=𝝅d?
This is the circumference of a circle with a diameter of 10 inches.
What is 31.4 inches?
These two numbers are neither prime, nor composite.
What are 0 and 1?
This is one of the first mathematicians to calculate 𝝅.
Who is Archimedes?
This measurement is found by taking the distance across a circle.
What is diameter?
This is the most common fractional equivalent to 𝝅.
What is 22/7 ?
This is the area of a circle with a diameter of 4 inches.
What is 12.56 in2 ?
The square root of this number is 9.
What is 81?
This is the group who calculated the area of a circle.
Who are the Babylonians?
This guy (no matter how hard he tries) will always be half of the diameter since he can only reach his way from one end of the circle to the center of the circle.
What is radius?
To find 𝝅 , we use this formula.
What is 𝝅 = C/d (circumference divided by Diameter)?
If a person is 15 years old, they will be this many pi years (rounded to the nearest tenth).
What is 4.8 pi years?
This number is a quarter of 314.
What is 78.5?
This man proved that 𝝅 will never repeat or end because it is an infinite decimal.
Who is Johann Lambert?
This is the type of number 𝝅 is.
What is irrational?
If I stack a whole bunch of circular disks on top of one another, I get this particular 3-D shape. Therefore, I can use the following formula to find the volume of this shape.
What is V=𝝅r2h ?
If a bicycle tire has a diameter of 27 inches, this is the distance (rounded to the nearest tenth) the bicycle will travel in 10 rotations of the tire.
What is 848.2 inches?
When you take the absolute value of negative 15, square it, and add negative 40, you get this sum.
What is 185?