中考图形操作题通常与几何知识联系,结合代数的基础知识,考查学生的数学实践与创新设计能力,同时又为学生提供了动手实践与操作设计的空间,因此成为中考命题的热点.一、图形的拼接例1如图1,M,N分别表示边长为a的等边三角形和正方形,P表示直径为a的圆.图2是选择基本图 The examination questions in the exam are usually linked with the knowledge of geometry, combined with the basic knowledge of algebra, examine students’ mathematics practice and creative design ability, and at the same time provide students with a space for hands-on practice and operation design. Therefore, they become hot spots in the examination proposition. The stitching example 1 is shown in Fig. 1. M and N respectively represent equilateral triangles and squares with a side length of a, and P represents a circle with a diameter of a. Fig. 2 is a selection basic diagram.