A line which cuts an angle into two equal side angles is called an angle bisector. In geometry a construction is an accurate drawing. There are two main constructions which can be done using a ...

THE principal novelties in this tract are the chapters on the orthopole (with some original propositions by the author) and on orthogonal projection (mostly after Prof. Neuberg). A pretty theorem ...

This angle bisector between two arms at 90 degrees ... complementary instead of complex-angled shapes like isosceles triangles. Geometry is like a puzzle with easy-to-follow rules that explain ...