3 ms·
An important aspect of this isn't that you cant trisect any particular angle, its that you cant trisect any arbitrary angle, plenty of angles, like 90 degrees,
by throwaway2048 7y ago
An important aspect of this isn't that you cant trisect any particular angle, its that you cant trisect any arbitrary angle, plenty of angles, like 90 degrees, are trivial to trisect.
- xyzzyz 7y agoYes. The better way to phrase it would be that some angles are impossible to construct, and importantly that includes a trisection of some angles that can in fact be constructed.
- secraetomani 7y agoInteresting. So like you have rational numbers and irrational numbers, you have trisectable angles and non-trisectable ones.
- schoen 7y agoThis analogy is rather precise—see this comment elsewhere in this thread. https://news.ycombinator.com/item?id=21209466 https://news.ycombinator.com/item?id=21209466