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Here's a picture: http://upload.wikimedia.org/wikipedia/commons/thumb/2/2e/Pi-symbol.svg/600px-Pi-symbol.svg.png
The ratio of any two lines in any picture is unchanged when you change the size of the picture. In the case of a circle, the ratio of circumference to diameter is called pi simply because pi has turned out to be a useful number in many applicaions.
picture a sphere. the surface area of a sphere is 4*pi*r^2.now, cut it in half. the surface area is 4*pi*r^2 / 2 =2*pi*r^2this is without including the bottom circular base
(pi)(1/pi)=1.4396 ...
the same as pi squared, which is 9.86960440109
The square root of pi times pi is simply pi. Because pi*pi=pi squared, the squared and the square root will cancel each other, leaving just pi.
Pi to the 5th power is approximately 306.019684785
[pi^(1/3)]^2 * pi = pi^(2/3) * pi = pi^(5/3) The answer is the cubic root of pi to the fifth power.
Um, reality check. pi is pi. pi is 3.1415. There is no separate Transformer pi.
(pi + pi + pi) = 3 pi = roughly 9.4248 (rounded) Well, if you use the common shortened version of pi which is 3.14 and add that 3 times, you get 9.42.
pi