Not only do we celebrate π (Pi) today, but it is also the Pi day of the century! Pi is a mathematical constant whose value we usually round to 3.14 when doing calculations. The next 2 digits in the sequence of this irrational number are 15 which is why we can call today 3/14/15 the pi day of the century. An irrational number is any real number that cannot be expressed as a ratio of integers. Irrational numbers cannot be represented as terminating or repeating decimals.
Pi has been represented by the Greek letter π since the 18th century. Pi is the ratio of a circle's circumference to its diameter. Circumference is the distance around the circle and diameter is the longest distance from one end of a circle to the other.
Click here to see formulas that use π
Click here to try some problems using π
And just in case you thought this blog was going to be about the kind of pie that you eat and are now very disappointed,hungry and bored,here are some delicious
Enjoy the pi and the pie!
Do You Like to Write?
Be a Resources4Teens
Send an email to
for more details