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From “PolyMatter”. ( YouTube / Nebula ) Go to https://brilliant.org/Polymatter to get 30 days free and 20% off Brilliant Premium. Watch this video ad-free on Nebula: https://nebula.tv/videos/polymatter-why-there-are-no-flights-between-india-and-china Sources: https://docs.google.com/document/d/1y2cxMTGWnHt58St-eWUxSuy8W7Y5fKpf-WKRXp1x4tw/edit?usp=sharing Twitter: https://twitter.com/polymatters Reddit: https://reddit.com/r/PolyMatter Email: polymatter@standard.tv Support independent creators like PolyMatter on Nebula: https://go.nebula.tv/polymatter How I Make These Videos: https://skl.sh/2OW1YQR Audio Editing by Donovan Bullen Editing…
From Mathologer. We are making history again by presenting a new visual proof of the 2000+ years old Ptolemy’s theorem and Ptolemy’s inequality. 00:00 Introduction 04:27 Geometry 101 08:19 Applications 14:46 Ptolemy’s inequality 18:34 LIES 25:35 Animated proofs 28:57 Thank you! 30:53 Degenerate Easter Egg There are some other proofs of Ptolemy’s theorem/inequality based on…