初中九年级下册数学《相似三角形的性质》相似PPT优质课件

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历史课件:www.1ppt.com/kejian/lish i/
2.从相似三角形的定义出发,能够得到相似三角形的什
么性质?
相似三角形的对应角相等、对应边成比例.
导入新课
3.说出相似三角形的相似比.
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相似三角形对应边的比是相似三角形的相似比. 手抄报:www.1ppt.com/shouchaobao/
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PPT课件:www.1ppt.com/kejian/ 数学课件:www.1ppt.com/kejian/shu xue/ 美术课件:www.1ppt.com/kejian/me ishu/ 物理课件:www.1ppt.com/kejian/wul i/ 生物课件:www.1ppt.com/kejian/she ngwu/ 历史课件:www.1ppt.com/kejian/lish i/
4.相似三角形的其他几何量(如对应高、对应中线、对应角平 分线及周长、面积)可能具有什么性质?
探究新知
1.相似三角形对应高的比、对应中线的比、对应角平分
线的比与相似比有怎样的关系?Hale Waihona Puke Baidu
PPT模板:www.1ppt.com/moban/ PPT背景:www.1ppt.com/beijing/ PPT下载:www.1ppt.com/xiazai/ 资料下载:www.1ppt.com/ziliao/ 试卷下载:www.1ppt.com/shiti/ 手抄报:www.1ppt.com/shouchaobao/ 语文课件:www.1ppt.com/kejian/yuw en/ 英语课件:www.1ppt.com/kejian/ying yu/ 科学课件:www.1ppt.com/kejian/kexu e/ 化学课件:www.1ppt.com/kejian/huaxue/ 地理课件:www.1ppt.com/kejian/dili/
巩固复习
1.叙述相似三角形的定义.
对应角相等、对应边成比例的两个三角形相似.
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地理课件:www.1ppt.com/kejian/dili/
PPT课件:www.1ppt.com/kejian/
语文课件:www.1ppt.com/kejian/yuw en/ 数学课件:www.1ppt.com/kejian/shuxue/
英语课件:www.1ppt.com/kejian/ying yu/ 美术课件:www.1ppt.com/kejian/me ishu/
PPT教程: www.1ppt.com/powerpoint/
资料下载:www.1ppt.com/ziliao/
个人简历:www.1ppt.com/jianli/
试卷下载:www.1ppt.com/shiti/
教案下载:www.1ppt.com/jiaoan/
手抄报:www.1ppt.com/shouchaobao/
PPT素材:www.1ppt.com/sucai/ PPT图表:www.1ppt.com/tubiao/ PPT教程: www.1ppt.com/powerpoint/ 个人简历:www.1ppt.com/jianli/ 教案下载:www.1ppt.com/jiaoan/ PPT课件:www.1ppt.com/kejian/ 数学课件:www.1ppt.com/kejian/shu xue/ 美术课件:www.1ppt.com/kejian/me ishu/ 物理课件:www.1ppt.com/kejian/wul i/ 生物课件:www.1ppt.com/kejian/she ngwu/ 历史课件:www.1ppt.com/kejian/lish i/
第二十七章 相似
相似三角形的性质
学习目标
1.理解相似三角形的性质.
2.能够运用相似三角形的性质解决简单的问题. PPT模板:www.1ppt.com/moban/
PPT背景:www.1ppt.com/beijing/ PPT下载:www.1ppt.com/xiazai/ 资料下载:www.1ppt.com/ziliao/ 试卷下载:www.1ppt.com/shiti/ 手抄报:www.1ppt.com/shouchaobao/ 语文课件:www.1ppt.com/kejian/yuw en/ 英语课件:www.1ppt.com/kejian/ying yu/ 科学课件:www.1ppt.com/kejian/kexu e/ 化学课件:www.1ppt.com/kejian/huaxue/ 地理课件:www.1ppt.com/kejian/dili/
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