Pi (Math)
Pi (Random Facts)
Trigonometry
Other Cool Math
100
What is the relationship/formula between the circumference of a circle and pi?
C=2πr
100
What day is pi day?
3/14
100
What is the value of sin(3pi/2)?
-1
100
Where does 1 - x2 touch the x-axis?
1, -1
200
What is the name of the value representing 2 x pi
Tau
200
How many digits does pi have?
infinite
200
What is the name for the reciprocal of sine?
cosecant
200
What is the name for the graph of a quadratic equation?
parabola
300
What is pi as an angle?
180°
300
What famous physicist was born on pi day?
Albert Einstein
300
At what values of x does 3tan(x/2) asymptote in the interval [-pi, pi]?
-pi and pi
300
What is a polygon with 12 sides called?
dodecagon
400
What is the common fraction approximation of pi?
22/7
400
How many digits of Pi do NASA mathematicians and engineers use?
16
400
At what x values are the asymptotes of tan(2x)?
-pi/4 and pi/4
400
What is the probability of rolling a sum of 7 when throwing two fair, six-sided die?
6/36 or 1/6
500
Name the identity that connects pi, e, and i.
Euler's Identity 
500
How many digits of pi are needed to accurately calculate the circumference of the universe?
37
500
What is the identity for sin(2x)?
sin(2x) = 2sin(x)cos(x)
500
What is an ellipse with a distance between foci of 0 called?
A circle