Pontos notáveis de um triângulo : uma abordagem geométrica e analítica

Abstract

In this work, we start with a little history of notable centers of the triangle, focusing on the four notable points: Centroid, Incentro, orthocenter and circumcenter, besides Straight Euler.Then discuss some classical results associated with the triangle and the coordinates of points on the Cartesian plane that will be useful to assist in the statements of the chapters that follow.These chapters are presented the outstanding points of the triangle and some of its characteristics as well as the Point Speiker and Reta Euler two aspects: the point of view of Euclidean geometry and the point of view of analytic geometry.