In this work, the main focus is the Morleys Theorem, whose formulation is based on one of three classical problems of Geometry: a trisection of an angle. From the historical context, it tries to insert the subject as motivation to the study of geometry. By the richness of the content or the difficulty involved in its construction, the Morleys triangle is a fine example of application to work with in the classroom. In parallel, a critical analysis of the difficulties that are found on the process of teaching and learning Mathematics, especially Geometry, is done in order to offer important benefits to the teaching activity and positively impacting their work. With demonstrations and applications that are shown it tries to fix up the acquired knowledge, as well as identifying ways to solutions of several similar geometric problems.