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任何图形经过“轴对称、平移、旋转”变换后所得的新图形与原图形之间仅仅是位置发生了变化,其形状和大小都没有变化;“轴对称、平移、与旋转”刻画了“两个全等图形”特定的位置关系,不同变换之下的图形都具有各自不同的性质,这些性质不仅能为推理提供依据,同时也是解决许多实际问题的重要工具.在中考试卷中一般以操作探究的形式对这部分知识进行重点考查.
After the “Axisymmetric, Translation, Rotation” transformation of any graphic, only the position between the new graphic and the original graphic has changed, and its shape and size have not changed; “Axis symmetry, translation, and rotation” The specific positional relationships between the two “two congruent graphics” are characterized, and the graphics under different transformations have different properties. These properties not only provide a basis for reasoning, but also are important tools for solving many practical problems. Test papers generally focus on this part of knowledge in the form of operational inquiry.