Whats a way of getting pi?

You could measure the circumference and the diameter of a circle and divide the circumference by the diameter to get an estimate for pi.

Here are some ways to calculate pi.

\((2*(\frac{1}{2})!)^2=\pi\)

\(\frac{4}{1}-\frac{4}{3}+\frac{4}{5}-\frac{4}{7}+\frac{4}{9}-\frac{4}{11}+\frac{4}{13}-\frac{4}{15}\hspace{1mm}...=\pi\)

Cool, huh?