In any non-isosceles triangle ABC, the bisectors of the exterior angles at A, B, and C meet the opposite sides at points D, E, and F respectively. Prove that D, E, and F are collinear."
Continue reading at:
gogeometry.com/triangleBisectExtCol.htm
Friday, December 5, 2008
Triangle with the bisectors of the exterior angles.
Collinearity
In any non-isosceles triangle ABC, the bisectors of the exterior angles at A, B, and C meet the opposite sides at points D, E, and F respectively. Prove that D, E, and F are collinear."
Continue reading at:
gogeometry.com/triangleBisectExtCol.htm
In any non-isosceles triangle ABC, the bisectors of the exterior angles at A, B, and C meet the opposite sides at points D, E, and F respectively. Prove that D, E, and F are collinear."
Continue reading at:
gogeometry.com/triangleBisectExtCol.htm