The hunt for pi

After searching for pi the writer must. 1.clearly and confidently explain it after researching and collecting additional information on that one method.
2) know that a diagram or set of diagrams would be advantageous as opposed to having none.
3) if possible, simulating your newly found method on Geogebra, while not required, might be hugely beneficial.
4) present your newly discovered method thoroughly, clearly, and preferably with diagrams and an explanation