It is very important for students to sort out and summarize the learning contents and knowledge points in the first volume of the fifth grade of People's Education Edition, so we must grasp them carefully. The following is the related content of the area knowledge points of combined graphics compiled by Bian Xiao for everyone, hoping to help everyone.

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There are several simple graphs, which we call combination graphs. There are many ways to calculate the area of combined graphics. Common methods are "division" and "addition". Segmentation is to divide this figure into several basic figures. The simpler the sub-graph, the simpler the problem-solving method will be, and the relationship between the sub-graph and the given conditions should be considered. Supplementary method, that is, by adding a simple graph, changes the whole graph.

Cheng Yi

A normal big shot. Apply what you have learned to solve the practical problems of combined graphics in life. The size of irregular graphic area can be estimated correctly. The area of irregular graphics can be calculated by calculating the grid. The content of irregular figure area calculation is mainly based on the grid diagram, such as Beijing, so the grid diagram can help to establish the calculation method of irregular figure area.