Geometry problems solving - my point of view
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vineri, 15 octombrie 2021
First problem of https://www.facebook.com/Matem%C3%A1tica-preuniversitaria-111349621225123/photos/pcb.135514875475264/135514668808618/
A solution, out of scheduled training
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https://math.stackexchange.com/questions/4636595/given-a-convex-quadrilateral-abcd-find-the-missing-angle?rq=1
Nice problem, lost source
Full solution of https://www.facebook.com/photo/?fbid=1899709203808549&set=a.148394885606665
Thanking to Alin Cretu,
ToT2, pr. 1, 2
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