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Yet for an angle chasing problem, this is a surprisingly long proof. In my experience, angle chasing is pretty short, but Sunset and Twilight have filled an entire chalkboard with derivations. (Again, at this point it’s only likely this is a real proof. What I’m doing here is finding out what a real proof would imply to help narrow down what the problem is. Based on how easy/hard it is to find a problem matching those deductions, I can adjust how likely I believe the proof is real. It’s possible the animators made a new geometry problem just for this movie, but I don’t think they’re crazy enough to do that for 29 seconds of animation.) After some searching, I found the World’s Hardest Easy Geometry Problem. It hits all the key details: it uses only angles, requires only basic geometry, and has a difficult solution. This is a surprising result and easy to remember. I first saw this back in the days I was solving olympiad problems. The 40-40-100 triangle has this nice characteristic property. There is a very nice geometric proof and a one liner trigonometry argument. Consider a triangle with angles. Math in Movies: The Friendship Games Geometry Problem. Challenge Mathematics Stack Exchange was a question and answer site for people studying math at any level and professionals in related fields. It only takes a minute to sign up. Sign up to join this community. Chase the Angles trigonometry - An Olympiad geometry problem
