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Canghareeb and Sanghareeb are described to be "geometric creatures" living inthe plane under certain conditions relative to a triangle. They have common anddifferent features. The former lives on a line segment inside a triangle andthe latter lives along an ellipse. Their story ends with a new definition ofthe ellipse.

Viviani's Theorem and its Extensions Revisited; Canghareeb, Sanghareeb and a New Definition of the Ellipse