Twist-hinged dissections of polygonal rings & anti-rings: Dodecagonal ring bench to 3 square benches https://t.co/SuHuqVIavd pic.twitter.com/jPy6pUlm6V
— Massimo (@Rainmaker1973) January 24, 2018
from Twitter https://twitter.com/Rainmaker1973
January 24, 2018 at 07:30PM
via IFTTT
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