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圆既是轴对称图形 ,又是中心对称图形 ,由于它的这种特殊性 ,圆中许多问题为多解问题 ,解答时需要按照一定的标准 ,分成若干种情况 ,逐一讨论解决 .这里举例说明圆中多解问题的分类方法 .
The circle is both an axisymmetric figure and a center symmetrical figure. Due to this particularity of the circle, many problems in the circle are multi-solution problems. The solution needs to be divided into several situations according to a certain standard and discussed one by one. Multi-solution problem classification method.