Jj Del Carpio

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A 60 degree angle cannot be trisected by ruler and compass constructions.

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As I recall, it is not something particular about 60deg angles. But the impossibility of arbitrary angle trisection.

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    yeah, the key word being "arbitrary". you can trisect certain angles, if you know their degree, a 90° angle for example... since 60 degree is also a "nice" number, it might have been possible, but seems like that is not the case.

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