IR-TST 2021 Problem 6
- Test 1
Point is chosen on the Euler line of triangle and it is inside of the triangle. Points are were the line intersect with respectively. Point is on the line such that , also are on the same side of . If is the second intersection of circumcircles of then prove the lines meet on the altitude of
Proposed by Alireza Danaie
Dataset text AI-MO AoPS. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
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