Uma proposta para o cálculo de área por meio de determinantes usando o GeoGebra

Abstract

The goal of this work is to present a proposal for the calculation of areas of polygons, when the coordinates of their vertices are known, through Determinants using the GeoGebra Software. In this way, it is intended to contribute to the learning of concepts addressed in the classroom for students of the 3rd grade of High School using technology in the classroom. For that, concepts of Matrices and Determinants are addressed, some of their applications - in particular the study of the area of polygons - concepts of Analytical Geometry and some of its properties, which is fundamental to demonstrate the area of polygons using determinants. In addition, the use of the GeoGebra Software is also addressed, in order to show the importance of using technologies as a teaching tool and didactic resource, aiming to achieve better results in the teaching and learning process of Mathematics.