Os teoremas de Menelaus e Ceva

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: SILVA, José Constantino da
Orientador(a): VERA, Jorge Antonio Hinojosa
Banca de defesa: VERA, Jorge Antonio Hinojosa, SILVA, Adriano Regis Melo Rodrigues da, VERA, Pedro Antonio Hinojosa
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal Rural de Pernambuco
Programa de Pós-Graduação: Programa de Pós-Graduação em Matemática (PROFMAT)
Departamento: Departamento de Matemática
País: Brasil
Palavras-chave em Português:
Área do conhecimento CNPq:
Link de acesso: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/7911
Resumo: The present work presents two important theorems of plane geometry. The first deals with the collinearity of three points on the straight brackets of the sides of a triangle, known as the theorem of Menelaus, and dates from the 1st century. The second is the Ceva’s theorem, dating from the 17th century and refers to the competition of three segments connecting each vertex to any point on the opposite side of a triangle. We present different demonstrations of these theorems, using known concepts of geometry, such as: proportionality of segments, congruence and similarity of triangles, area calculation, trigonometry, vector geometry and barycentric coordinates. We treat the corresponding versions of such theorems in the space geometry. Initially, we provide historical data of the theorems and conclude with some applications.