Newton’s line

Let $ABCD$ be a circumscribed quadrilateral. The middle of the two diagonals $M,N$ and the center of the inscribed circle $I$ are collinear. This line is called the Newton’s line

Title Newton’s line NewtonsLine 2013-03-22 14:05:34 2013-03-22 14:05:34 vmoraru (1243) vmoraru (1243) 4 vmoraru (1243) Definition msc 51-00