Uploaded March 2026 | Updated September 2026, 1 week ago
You can split any angle in half with a compass and straightedge. But splitting it into thirds? Proven impossible in 1837.
Pierre Wantzel showed that compass-and-straightedge constructions can only solve quadratic equations — but trisecting a general angle requires solving an irreducible cubic.
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Disclaimer: This video is for entertainment purposes only and should not be considered academic. Though all information is provided in good faith, no warranty of any kind, expressed or implied, is made with regards to the accuracy, validity, reliability, consistency, adequacy, or completeness of this information. Viewers should always verify the information provided in this video by consulting other reliable sources.
You can split any angle in half with a compass and straightedge. But splitting it into thirds? Proven impossible in 1837.
Pierre Wantzel showed that compass-and-straightedge constructions can only solve quadratic equations — but trisecting a general angle requires solving an irreducible cubic.
This video was partially created using Manim. To learn more about animating with Manim, check out:https://manim.community
Disclaimer: This video is for entertainment purposes only and should not be considered academic. Though all information is provided in good faith, no warranty of any kind, expressed or implied, is made with regards to the accuracy, validity, reliability, consistency, adequacy, or completeness of this information. Viewers should always verify the information provided in this video by consulting other reliable sources.
