2012.C5

Part of Durer Math Competition CD 1st Round - geometry

Problems(1)

IG // side of triangle 2011-12 Dürer Round1 C5

Source:

In a triangle, the line between the center of the inscribed circle and the center of gravity is parallel to one of the sides. Prove that the sidelengths form an arithmetic sequence.

geometryDurerincenterCentroid