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圆既是轴对称图形,又是中心对称图形,而且具有旋转不变性。鉴于圆的这些特性,在初中数学中有关圆的问题常常会出现两解甚至多解情况。学生在解题过程中由于审题不严谨、考虑不周全而出现漏解的现象俯拾即是。许多优秀学生都在这类问题上丢分惨重,造成试题卷面上的遗憾。本文将初中数学圆中常见的两解及多解问题归纳如下,以同借鉴。一、点与圆的位置关系中的多解问题
Circle is both axisymmetric graphics, but also the center of the symmetrical graphics, but also with rotation invariance. In view of these characteristics of the circle, two or more solutions to the problem of circles in junior math math often appear. Students in the process of solving problems due to the problem is not rigorous examination, consider the phenomenon of incomplete and leaked everywhere. Many outstanding students have dropped heavy losses on such issues, resulting in questions on the surface of the regret. This article summarizes the common two solutions and multiple solutions in junior high school math circle as follows, with reference. First, the relationship between the point and the round of multi-solution problem