由抛物线外点p作切点三角形（阿基米德三角形），记其外心为o，如何证明pf⊥of？ 知乎 Sketch Coloring Page

由抛物线外点p作切点三角形（阿基米德三角形），记其外心为o，如何证明pf⊥of？ 知乎 Template

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tomski由抛物线外点p作切点三角形（阿基米德三角形），记其外心为o，如何证明pf⊥of？ 知乎 coloring

由抛物线外点P作切点三角形（阿基米德三角形），记其外心为O，如何证明PF⊥OF？ 知乎 sketch template

记录运用阿基米德三角形性质解抛物线问题 知乎 sketch template

阿基米德抛物线求面积问题 知乎 sketch template

三角形特征点简介 知乎 sketch template

尺规作图——只用直尺过圆外一点作圆的切线 知乎 sketch template

射影几何观点下的二次曲线（4） 知乎 sketch template

抛物线的切线 知乎 sketch template

三角形特征点简介 知乎 sketch template

三角形特征点简介 知乎 sketch template

三角形特征点简介 知乎 sketch template

配极入门 知乎 sketch template

三角形特征点简介 知乎 sketch template

抛物线中的一个经典模型，作为设线法之外的另一个核心知识点，设点法，在圆锥曲线考察中是另一个王者般的存在，经典模型：阿基米德三角形 知乎 sketch template

浅谈完全四边形性质（续） 知乎 sketch template

浅谈完全四边形性质 知乎 sketch template

圆锥曲线极点极线知识篇5——椭圆极点极线的十种重要结论 知乎 sketch template

详解GeoGebra中的“三角形中心”及“三线坐标点”的含义 知乎 sketch template

抛物线与切线的一些性质 知乎 sketch template

阿基米德三角形有什么结论？ 知乎 sketch template

如图抛物线y= X2 Bx C经过点ABC已知A．P为线段BC上一点过点P作y轴平行线交抛物线于点D当 BDC的面积最大时点P sketch template

浅谈完全四边形性质 知乎 sketch template

包络线的几何求法 知乎 sketch template

三角形“四心”有关性质及证明（内心篇） 知乎 sketch template

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【圆锥曲线�：极点极线初步 知乎 sketch template

等角线与三角形的等角共轭点 知乎 sketch template

浅谈完全四边形性质 知乎 sketch template

圆外切四边形的一个性质 知乎 sketch template

P是等边三角形内一点，过点P作三角形三边的垂线，垂足分别为D、E、F，阴影部分面积为1，求等边三角形面积百度知道 sketch template

圆锥曲线几何性质学习笔记 知乎 sketch template

圆锥曲线极点极线知识篇5——椭圆极点极线的十种重要结论 知乎 sketch template

如图点P为⊙O外一点过点P作⊙O的两条切线切点分别为AB．过点A作PB的平行线交⊙O于点C．连结PC交⊙O于点E连结AE并延长 sketch template

如图过圆外一点P作圆的两条切线PAPBAB为切点再过P点作圆的一条割线分别与圆交于点CD过AB上任一点Q作PA的平行线分别与直线 sketch template

如图，在四边形ABCD中，对角线AC与BD交于点O，已知OA =OC，OB=OD，过点O作EF⊥ BD，分别交AB、DC于点E，F，连接DE sketch template

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