Constructions (accurate drawings) can be made using a ruler, a pair of compasses and a pencil. A line which cuts an angle into two equal side angles is called an angle bisector. In geometry a ...

Summary We prove the next generalization of the Steiner-Lehmus theorem: if two equal cevians intersect with each other on the angle bisector of the third triangle vertex, then the triangle is ...

This is a preview. Log in through your library . Abstract Let $\Delta A^1A^2A^3$ be a triangle with vertices at $A^1, A^2$ and $A^3$. The process of "bisecting ...