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MathNet 2017-part-01 — 176 problems (EN–VI) Question 144

Math Olympiad Vault · MathNet 2017-part-01 — 176 problems (EN–VI)

Question 144

One hundred circles of radius one are positioned in the plane so that the area of any triangle formed by the centres of three of these circles is at most $2017$. Prove that there is a line intersecting at least three of these circles.