Geometric solids, nets, polyhedrons, round bodies, faces, vertices and edges

1,370,091 views

Professora Vilma Ribeiro

Published on Mar 31, 2020
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Download activities about geometric solids from the link below: https://professoravilmaribeiro.blogsp... Let's study Geometry. Specifically, spatial geometry, which is the area of ​​mathematics that studies figures in space, that is, those that have more than two dimensions. Do not confuse a flat geometric figure with a spatial geometric figure. Flat figures have all their points on the same plane, such as: a circle, a triangle, a square, a rectangle, a rhombus, and a pentagon. Spatial geometric figures or geometric solids have height, length, and width, such as: a cube, a cylinder, a prism, a pyramid, a cone, and a sphere. Geometric solids can be classified into polyhedrons and round bodies. In polyhedrons, all their faces are composed of flat surfaces. And in round bodies, their surface has some rounded part. Another concept that we will learn today is about the planning of a solid. When we do a planning, it is as if we were opening the geometric solid. Thus, we can discover which flat figures form this solid. For example, look at the plan of the cube. When it opens up, we see that it is made up of 6 squares. In the plan of the pyramid with a triangular base, we see that it is made up of 4 triangles. And the cone is made up of a rectangle and two circles. Another thing you may have already learned is that geometric solids have vertices, edges, and faces. The vertices are each point of a geometric figure. The edges are the lines that connect these points. And lastly, we have the faces, which are the sides of the geometric figure. And if you don't understand a concept, rewind the video as many times as you need. Credits: Channel Matemática Genial Channel Smile And Learn Channel Matematiktube

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