ESTUDOS GEOMÉTRICOS - CÍRCULOS

This study analyzes a new method for calculating the perimeter of a circle using regular polygons circumscribed around it. It is a coherent and precise study where circles with diameters of 3, 5, and 7 squares were analyzed, with each grid square measuring approximately 2.20 cm. This method yields good results, where the value of the circle's perimeter is obtained through a constant value equal to three times the diameter. We correct the study published in the electronic journal "Acervo Mais Revistas" on 01/28/2020, entitled 'Analysis of the Circumference's Perimeter.' In that study, the objective was to calculate the perimeter of the circumference. In this present study, however, we will focus on the inner part of the circumference—the circle—as the basis for calculating capacity. Therefore, we will use the term 'perimeter of the circle' to specify or differentiate, and also because it deals with the inner part of the circumference, the available part of a sphere suitable for being filled, for example, with water. In this study, we will see that it is the circumscribed hexagon that has a side equal to the radius of the circle.