See https://en.wikipedia.org/wiki/Angle_trisection On Mon, Dec 17, 2018 at 4:26 PM James Propp <jamespropp@gmail.com> wrote:
In his video "How to Make a Paper Snowflake" ( https://www.youtube.com/watch?v=BIiEsIDenTk&feature=youtu.be ) Matt Parker shows how to trisect a 180 degree angle by pulling a fold in a constrained fashion until it meets a certain point.
It seems to me that this method should allow one to construct some angles that can't be trisected with straightedge and compass. And I suspect it's one of the already-studied construction methods that go beyond straightedge and compass.
Do any of you know anything about this?
Thanks,
Jim Propp _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun