TIL about the inscribed angle theorem. I didn't like any of the proofs I found by searching at first (I mean, they were fine, but I found them...unenlightening), but eventually found this one which I really like:

https://www.youtube.com/watch?v=FiAcHgNF2u4

#math #geometry #visualproof #ProofWithoutWords

This is a short, animated visual proof demonstrating Jordan’s inequality, which is an equality providing upper and lower bounds for the sine function over the interval [0, pi/2].

Jordan’s Inequality Visual Proof

#Theorem #VisualProof #Algebra #animation #circle #inequality #jordanInequality #Math #MathematicalVisualProofs #Mathematics #nowWatching #unitCircle #YouTube