Pi Meanings
Pi Day
Pi Formulas/Pi
Algebra 2
Pi Trivia
100
The definition of pi
What is the ratio of a circle’s circumference to its diameter?
100
Pi Day is celebrated on this date.
What is March 14? (3.14) ?
100
The formula for area of a circle
What is A=πr^2?
100

square root of -1 = ?

What is i

100
The value of pi fits into this classification of numbers.
What is irrational?
200
An approximate value of pi, correct to two decimal places
What is 3.14 ?
200
This famous mathematician’s birthday is on the same date as Pi Day.
Who is Albert Einstein?
200
The formula for circumference of a circle
What is C = 2πr or C = πd?
200

Do this to find vertical asymptotes of a rational function ...

set the denominator equal to 0 and solve for x

200
The height of which animal (from foot to shoulder) is equal to 2π times the diameter of its foot
What is an elephant?
300
An approximate value of pi, in fractional form
What is 22/7?
300
The best time of day to celebrate Pi Day, according to the third, fourth, and fifth digits following the decimal
What is 1:59?
300
The formula for volume of a cylinder
What is V = πr^2h ?
300

A=P(1+r)^t  is the equation for what?

what is exponential growth

300
The U.S. state in which a bill was introduced to legislate the value of pi
What is Indiana?
400
∏ is the ____ letter of the alphabet. (1st, 2nd, 3rd, etc.)
What is 16th?
400
Another date to celebrate Pi Day—the 314th day of the year
What is November 10 (or November 9 in leap years)?
400

Take the formula for the area of a circle 

A = pir^2

and solve it for r.  

r=sqrt(A/pi)

400

Factor:

81x2 + 144

(9x2+12)(9x2-12)

400
One of two ancient countries in which a value for pi was probably first used to calculate the area of a circle
What is Babylon or Egypt? (probably as early as 2000 or 3000 BC)
500
∏ is a letter from the alphabet of this language
What is Greek ?
500
A date during the summer which could be another good time for Pi Day
What is 22nd of July? (22/7) ?
500

First 6 digits of pi?

3.14159

500

If the highest degree in the numerator is equal to the highest degree (power) in the denominator, then the horizontal asymptote is this

What is leading coefficient/leading coefficient

500
The number of centuries for which the letter pi has been used to represent this special mathematical ratio
What is 3? (This use of the letter pi first showed up in mathematical writings in about 1706.)
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