@mathvisualproofs: Thales Triangle Theorem This is a short, animated classic visual proof of Thales triangle theorem, which states that any triangle inscribed in a circle along a diameter (and thus in.a semicircle) must be a right triangle. This is a classic visualization and so I could not find an original source. However, this argument is documented on the wikipedia site for the theorem: https://en.wikipedia.org/wiki/Thales%27s_theorem To buy me a coffee, head over to https://www.buymeacoffee.com/VisualProofs Thanks! #manim #math #triangle #thalestriangletheorem #geometry To learn more about animating with manim, check out: https://manim.community