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等腰三角形
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等腰三角形. 阅读课文 P130 至 P132 页. 等腰三角形具有哪些性质？. 认识等腰 三角形. 自学指导. 一、. 自学指导. 二、. 自学指导. 三、画一画，想一想：. 等腰三角形的性质： 等腰三角形的两底角相等 （等边对等角） 等腰三角形的顶角平分线也是底边上的中线和底边上的高 （三线合一） 等腰三角形是轴对称图形. 范例解答. 百炼成钢. 1. 百炼成钢. 2. 解：. 1 2. 解：. 运用知识. 解 ：. 小结. 再见.
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等腰三角形
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