Given a quadrilateral , the three diagonal points , , and defined as the pairwise intersections of the lines determined by the sides , , and .
Diagonal Points
See also
Nine-Point Conic, QuadrilateralExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Diagonal Points." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/DiagonalPoints.html