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Σημεία Steiner και Fermat σε τρίγωνο.
Σημείο Steiner και Fermat για τρίγωνο
Το άθροισμα των αποστάσεων b+c+k είναι το ελάχιστο δυνατό μήκος δρόμων που συνδέει τις κορυφές του τριγώνου.