MathLapse - Inscribed Angle Theorem

This short film is submitted to MathLapse Festival 2016.
The film is licensed under CC-BY 3.0 in 2016. The music is "My Alien Sample" by kathol, licensed under a CC-0 3.0 in 2006 (freesound.org/people/kathol/). The sound effects are "Alien Sounds" by thelastrepublic licenses CC-0 1.0 in 2014 (freesound.org/people/thelastre...) and "33245__Ijudman__grenade + 33637_HerbertBoland_CinematicBoomNorm.wav" by AleXtreme.de licensed CC-Sampling+ 1.0 in 2011 (freesound.org/people/AleXtreme....

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wtf is this