So you have a circle. What is the area of that circle? Surely everyone remembers that the area of a circle is: Where Pi (Ï€) is of course the number and r is the radius of the circle. Where does this ...
Math lovers celebrate March 14 as Pi Day, in honor of the irrational number pi. Pi, or π, is defined as the ratio of the circumference of a circle to its diameter. Pi is an irrational number, meaning ...