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旋转变换是平面几何中常见的一种转化方法,通过旋转几何图形的某一部分,可将几何图形中看似无关的线段作等量转移、建立数量关系,从而达到解决问题的目的.
Rotation transformation is a common transformation method in plane geometry. By rotating a certain part of the geometry, the seemingly unrelated line segments in the geometry can be transferred by equal amounts and the quantity relationship can be established, so as to solve the problem.