Elements of Plane Geometry, Book 1 is a mathematical textbook written by Euclid and published in 1865. The book contains a comprehensive study of the principles and concepts of plane geometry, exploring the properties of lines, angles, triangles, circles, and other geometric shapes. The work is a continuation of Euclid's Elements, which is considered one of the most influential mathematical works of all time. This particular book contains nearly the same propositions as the first book of Euclid's Elements, making it an essential resource for students and scholars of mathematics. The text is written in a clear and concise style, with numerous diagrams and illustrations to aid in understanding. The book is suitable for both beginners and advanced students of mathematics, and it provides a solid foundation for further studies in geometry and related fields. Overall, Elements of Plane Geometry, Book 1 is a timeless classic that remains relevant and useful to this day.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.