This book includes the material of Euclidean Geometry for the 1st High School, as provided by the curriculum. The material is divided into twenty teaching units, each of which contains:

- Full theory written concisely

- Exercises with answers (exercises and problems) solved exemplarily, in many of which the solution is accompanied by general observations aimed at familiarizing the student with the methods of solving Euclidean Geometry.

- Exercises to answer, which are divided into:

- a) questions (theory, true-false type, multiple choice, etc.),

- b) exercises

- c) problems.

- Exams

At the end of the book there are the answers and the necessary instructions for the exercises to answer and the exams.