Draw a figure using only straight line pieces, without taking the pencil off the paper, until you return to the beginning without crossing the path. You drew a polygon! What is a polygon Definição · Polygon A polygon is a flat closed figure, formed only by pieces of straight lines (the sides) that do not intersect. The points where two sides meet are the vertices. The circle is not a polygon: its contour is curved. An open figure is also not a polygon.
Detectives from all four sides Run your finger along the outline of each figure. Count four sides and four vertices. Draw a grid of 3 by 4 squares: it will have 12 squares. This is an area idea. In the previous post, we talked a little about the book Elements of Euclid, which is made up of 13 books.