+0  
 
0
634
2
avatar

what's pi?

 Feb 22, 2017
 #1
avatar+35 
+5

The number π is a mathematical constant, the ratio of a circle's circumference to its diameter, commonly approximated as 3.14159. It has been represented by the Greek letter "π" since the mid-18th century, though it is also sometimes spelled out as "pi" (/paɪ/).

 Feb 22, 2017
 #2
avatar
0

3.1415

 Feb 22, 2017

1 Online Users

avatar