Modern Geometry is a comprehensive textbook written by Charles Godfrey and published in 1908. The book covers a wide range of topics in geometry, including Euclidean geometry, projective geometry, and non-Euclidean geometry. It is intended for use by students who have a solid foundation in algebra and trigonometry.The book is divided into three parts. The first part covers Euclidean geometry, including lines, angles, triangles, circles, and polygons. The second part covers projective geometry, which is a more advanced form of geometry that deals with properties that are invariant under projective transformations. The third part covers non-Euclidean geometry, which is a type of geometry that differs from Euclidean geometry in that it does not assume the parallel postulate.Throughout the book, Godfrey provides clear explanations of the concepts and theorems, and he includes numerous examples and exercises to help students develop their understanding. The book also includes numerous diagrams and illustrations to help students visualize the concepts.Overall, Modern Geometry is a valuable resource for students and teachers of geometry, providing a thorough and accessible introduction to the subject.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.