2019春七年级数学下册第五章《生活中的轴对称》5.3简单的轴对称图形第1课时等腰三角形的性质与判定习题课件(新版)北师大版.ppt

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第五章 生活中的轴对称 5.3 简单的轴对称图形 第1课时 等腰三角形的性质与判定,一,三线合一,对称轴,底角,三,角平分线,60,80,37,30,A,C,37,A,

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