The midpoints N, W, and T of the diagonals AC, BD, and EF of a complete quadrilateral ABCDEF lie on a line called Newton-Gauss Line.
Complete quadrilateral ABCDEF is the figure determined by four lines, no three of which are concurrent, and their six points of intersection A, B, C, D, E, and F.
This step-by-step interactive illustration was created with GeoGebra.
GeoGebra is free and multi-platform dynamic mathematics software for all levels of education that joins geometry, algebra, tables, graphing, statistics and calculus application, intended for teachers and students. Many parts of GeoGebra have been ported to HTML5.
Geometry Problems
Open Problems
Visual Index
Ten problems: 1411-1420
All Problems
Triangle
Complete Quadrilateral
Midpoint
Collinear Points
Dynamic Geometry
GeoGebra
HTML5 and Dynamic Geometry
iPad Apps
View or Post a solution