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Wask (strange objects like the short-sided ruler): https://waskstudio.com
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Thales's Theorem on wikipedia: https://en.wikipedia.org/wiki/Thales%27s_theorem
Thales's Theorem is a special case of the inscribed angle theorem: https://en.wikipedia.org/wiki/Inscribed_angle
"axiom" vs "postulate" vs "theorem": https://math.stackexchange.com/questions/7717/difference-between-axioms-theorems-postulates-corollaries-and-hypotheses
The axioms of Euclidean plane geometry: http://www.math.brown.edu/~banchoff/Beyond3d/chapter9/section01.html
sum of internal angles in a triangle:
https://www.cut-the-knot.org/triangle/pythpar/AnglesInTriangle.shtml
https://en.wikibooks.org/wiki/Trigonometry/Proof:_Angles_sum_to_180
https://en.wikipedia.org/wiki/Sum_of_angles_of_a_triangle
https://complete-concrete-concise.com/mathematics/proving-that-the-angles-in-a-triangle-sum-up-to-180/
parallel theorems: https://mathbitsnotebook.com/Geometry/ParallelPerp/PPverify.html
more circle theorems: https://www.mathsisfun.com/geometry/circle-theorems.html
angles opposite equal sides in a triangle are equal: https://gradestack.com/CBSE-Class-9th-Complete/Triangles/Angles-Opposite-to-Equal/14901-2953-3986-study-wtw
***CREDITS***
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Edited by
Hannah Canetti
instagram: @hannaynaycanaynay
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Music by Jake Chudnow and from AudioNetwork
(http://youtube.com/jakechudnow)
(https://www.audionetwork.com)
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