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Exploring the
Mathematics of Cancer

By:
James P. Dildine,
with advice and calculations from Howard A. Silver.
This page is meant to provide an interactive sketch that you
can use to explore the ratio of perimeter^2/a for the three figures
shown.

Notice the crablike figure and the changes that are made in
the ratio as you drag certain points around on the figure.

Notice also the regularity of the circle and the square like
sketch. Can you modify the crab-like figure to have a more stable ratio
of r?