Pi Facts
What is the value of Pi to two decimal places?
3.14
Pi Day is celebrated every year on this date.
March 14
If you have a circle with either a diameter of 10, what is the approximate circumference
31.4
Pi is used in the calculation of this measure of a circle's area.
A = (pi)r^2, Area
What is the fraction commonly used as an approximation for pi?
22/7
Pi is the ratio of a circle’s what to its diameter?
Circumference
In honor of Pi Day, this dessert is often eaten.
Pie
What is the area of a circle with a radius of 7?
153.94 square units
Pi is essential in calculating the volume of this 3-dimensional shape.
Sphere
What is another common approximation of pi to two decimal places?
3.14
What is the symbol for Pi?
π
Pi Day is also a great excuse to eat pie! Which type of pie is most commonly associated with Pi Day celebrations?
Apple pie
Pi is used in the formula for the area of a circle. What is the formula?
A =(pi)r^2
This constant is the ratio of the circumference to the diameter of a circle, and it appears frequently in physics, particularly in formulas for waves.
Pi
What is the value of pi to four decimal places?
3.1415/3.1416
Pi has been calculated to how many decimal places?
Over 31 trillion
The year Pi day was nationally recognized
2009
What is the formula for the circumference of a circle?
C = 2(pi)r
This branch of mathematics, closely related to Pi, deals with angles and their relationship to circular motion.
Trigonometry
What is the decimal approximation of pi to six decimal places?
This symbol, used to represent Pi, was first introduced by this mathematician
Leonhard Euler
This ancient civilization first to use Pi
Egyptian Empire
A circular fountain has a diameter of 12 meters. What is the circumference of the circle rounded to the nearest 10th?
37.7
Pi is used in the calculation of this mathematical concept, which is the distance from the center to the edge of a circle.
Radius
What is the 100th decimal place?
9