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(311) 1

Part of 1991 Tournament Of Towns

Problems(1)

TOT 311 1991 Autumn O S1 2 tangent circles, tangent to an angle

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6/9/2024
Two circles with centres AA and BB lie inside an angle. They touch each other and both sides of the angle. Prove that the circle with the diameter ABAB touches both sides of the angle.
(V. Prasolov)
geometrytangent circles