Diego Rattaggi ๐จ๐ญ
@diegorattaggi
Mathematician. ex-MTT coin flipper. #mathiratti What fraction is shaded? #wfis #OEPF #phibonacci. Federer H2H since 2007. rattaggi.ch/federer.html
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12-08-2013 16:47:08
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Two congruent pentagons and semicircle. Golden Ratio problem inspired by Diego Rattaggi ๐จ๐ญ
The most interesting regular pentagon problem I've ever solved. Numbers there are pure Magic. Another Golden Ratio problem by Diego Rattaggi ๐จ๐ญ