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Category | Format | Size |
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People's Education Press Seventh Grade Mathematics Volume 1 | pptx | 6 MB |
Description
"Three-dimensional Figures and Plane Figures" Preliminary PPT Courseware for Graphic Understanding 2
From a mathematical point of view, a part of the plane is completely covered with non-overlapping polygons; this type of problem is usually called a plane tessellation with polygons.
The tessellation we are discussing here stipulates that the vertices of a regular polygon do not fall on the sides of another regular polygon. The sides of a regular polygon must coincide with the sides of another regular polygon. That is, the side lengths of the tessellated regular polygons are all equal.
Mosaic of graphics:
One or more plane figures of the same shape and size are used to splice them together, and they are spread into one piece without leaving any gaps or overlapping. This is the dense paving of plane figures, also known as the mosaic of plane figures.
Two conditions for dense paving:
1. One or several congruent plane figures;
2. Pave in one piece without gaps or overlapping.
Classification of regular polygon tessellation:
1. Regular mosaic
2. Semi-regular tessellation
3. Irregular mosaic
definition:
1. A tessellation that uses only one type of regular polygon is called a regular tessellation.
2. Using more than one type of regular polygon to tessellate, and having the same arrangement of regular polygons at each vertex is called semi-regular tessellation.
3. There are also some mosaics that contain regular mosaics. We call this mosaic: non-regular mosaic. These mosaics are hybrid mosaics of regular mosaic or semi-regular mosaic.
Keywords: Preliminary understanding of graphics, three-dimensional graphics and plane graphics courseware, New People's Education Edition seventh-grade mathematics PPT courseware, seventh-grade mathematics slide courseware download, preliminary understanding of graphics, three-dimensional graphics and two-dimensional graphics PPT courseware download, .ppt format
For more information about the "Preliminary Understanding of Graphics Three-dimensional Figures and Plane Figures" PPT courseware, please click the "Preliminary Understanding of Figures ppt Three-dimensional Figures and Plane Figures ppt" tab.
"Three-dimensional Figures and Plane Figures" Preliminary PPT Courseware for Graphic Understanding:
"Three-dimensional Figures and Plane Figures" Preliminary PPT Courseware for Graphic Understanding Teaching Objectives Knowledge and Skill Objectives: Recognize geometric objects such as cylinders, cones, cubes, cuboids, prisms, and spheres in specific environments, and be able to describe some of their characteristics in language. Methods and procedures...
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Update Time: 2024-09-06
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