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1968 All Soviet Union Mathematical Olympiad
106
106
Part of
1968 All Soviet Union Mathematical Olympiad
Problems
(1)
ASU 106 All Soviet Union MO 1968 4 equal incircles by medians
Source:
6/20/2019
Medians divide the triangle onto
6
6
6
smaller ones.
4
4
4
of the circles inscribed in those small ones are equal. Prove that the triangle is equilateral.
geometry
incircle
median