Show your mathematics to the world!

Board of pi

IMG_20150319_170705

This board by David Cushing at Newcastle University attempts to calculate pi very crudely by counting how many squares a circle covers and using the formula

Area = pi x r2

to get a value of 2.98. Can you do better?

This exercise was part of a series of activities carried out to celebrate “Ultimate pi day” on 3/14/15 (in US date format). There were also many other attempts by people to  estimate the value of pi using nonstandard methods. Did you take part in the festivities and, if so, how?

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