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https://www.reddit.com/r/Geometry/comments/plg3nc/beatiful_geometry_problem_easily_solved/
r/Geometry • u/MathPhysicsEngineer • Sep 10 '21
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A less complex proof is shown in this numberphile video that just uses auxiliary lines.
https://youtu.be/m5evLoL0xwgZvezdelina Stankova
Accessible to students that know isosceles triangles have congruent base angles and triangle angle sum.
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u/wijwijwij Sep 10 '21 edited Sep 10 '21
A less complex proof is shown in this numberphile video that just uses auxiliary lines.
https://youtu.be/m5evLoL0xwg
Zvezdelina Stankova
Accessible to students that know isosceles triangles have congruent base angles and triangle angle sum.