2019中考数学一轮复习第一部分教材同步复习第四章三角形第15讲线段、角、相交线与平行线5年真题精选.doc

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2019中考数学一轮复习第一部分教材同步复习第四章三角形第15讲线段、角、相交线与平行线5年真题精选.doc_第1页
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1第一部分 第四章 第 15 讲命题点 1 相交线中角的识别及计算1(2018昆明 3 题 3 分)如图,过直线 AB 上一点 O 作射线 OC, BOC2918,则 AOC 的度数为_15042_.命题点 2 平行线的性质2(2016云南 2 题 3 分)如图,直线 a b,直线 c 与直线 a, b 分别相交于 A, B 两点若160,则2_60_.3(2016昆明 4 题 3 分)如图, AB CE, BF 交 CE 于点 D, DE DF, F20,则 B 的度数为_40_.4(2015云南 11 题 3 分)如图,直线 l1 l2,并且被直线 l3, l4所截,则 _64_.5(2014云南 10 题 3 分)如图,直线 a b,直线 a, b 被直线 c 所截137,则2_143_.

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