This is Book 1 which is divided into three chapters that are designed to engage readers in the study of angles. The first chapter begins by presenting essential concepts concerning angles in the plane and provides a multitude of applications. The second chapter shifts focus to other classical results in Euclidean geometry. It delves into the tools that use angles as their primary elements, unveiling the power of angles in problems related to triangle similarity, quadrilaterals, and circles. This awesome journey culminates with the third chapter where a collection of thought-provoking problems are being offered. These problems draw upon the insights and skills acquired in previous chapters, inviting the reader to explore angles in novel ways. All solutions to the proposed problems in the book are included at the end.
- Titu Andreescu, Navid Safaei, and Alessandro Ventullo
- Softcover: 231 pages
- Publisher: XYZ Press (2023)
- Language: English
- ISBN-13: 979-8-9890528-2-0