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The first Lemoine circle of the triangle in an isotropic plane

The concept of the first Lemoine circle, Lemoine hexagon and Brocard angle will be introduced in an isotropic plane. Some statements about relationships between introduced concepts and some other previously studied geometric concepts about triangle will be investigated in an isotropic plane. A number of these statements are new, and some of them are known in Euclidean geometry.

isotropic plane ; first Lemoine circle ; Lemoine hexagon ; Brocard angle

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