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利用三角形相似线段成比例，构建方程，等腰三角形的存在性
等腰三角形的存在性问题 4
中考数学压轴题专辑116/130
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App03:17等腰三角形的存在性问题 4
App11:55App07:30App06:28App08:31App05:16App08:37App11:39App09:14App09:09App07:16App04:28App05:47App07:40App06:37App05:10App03:17
