Download or read book THE GEOMETRY OF THE ORTHOLOGICAL TRIANGLES written by Ion Pătrașcu and published by Infinite Study. This book was released on with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is addressed to both those who have studied and love geometry, as well as to those who discover it now, through study and training, in order to obtain special results in school competitions. In this regard, we have sought to prove some properties and theorems in several ways: synthetic, vectorial, analytical.