The Problem of the Angle-Bisectors is a mathematical book written by Richard Philip Baker in 1911. The book is focused on the study of angle bisectors and their properties. It explores the problem of constructing an angle bisector, as well as the properties of the angle bisectors in different types of triangles. The book also provides proofs and examples of theorems related to angle bisectors, such as the Angle Bisector Theorem and the Incenter Excenter...