如图所示已知三角形abc中∠bac为钝角． 1画出点c到ab的垂线段 2过a点画bc的垂线 3点b到ac的距离是多� Sketch Coloring Page

如图所示已知三角形abc中∠bac为钝角． 1画出点c到ab的垂线段 2过a点画bc的垂线 3点b到ac的距离是多� Template

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sketch #2573 homer simpson

anonymous

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anonymous
sketch #4386 Freddie Mercury by Павел Павлов

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sketch #3523 My World My Way by Elena Artene

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sketch #3535 Mickey by Hakan Usuğ

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sketch #4436 Bob Marley by Luiza Irma

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anonymous
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tomski如图所示已知三角形abc中∠bac为钝角． 1画出点c到ab的垂线段 2过a点画bc的垂线 coloring

如图所示已知三角形ABC中∠BAC为钝角． 1画出点C到AB的垂线段 2过A点画BC的垂线 3点B到AC的距离是多� sketch template

已知：在三角形ABC中，AB=AC角BAC=20度，D点在AB上且AD=BC求角ACD的度数知乎 sketch template

平面�量与三角形的四心知乎 sketch template

15．如图所示已知等腰直角三角形ABC中∠ACB=90°直线L经过点C AD ⊥LBE⊥L垂足分别为DE． 1证明 ACD sketch template

如图，在三角形 ABC 中， D 是 BC 的中点， E 、 F AC 的三等分点。已知三角形 的面积是 108 平方厘米。求三角 sketch template

如图所示已知三角形ABC中∠BAC为钝角． 1画出点C到AB的垂线段 2过A点画BC的垂线 3点B到AC的距离是多� sketch template

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

如图所示在等边 ABC中点DE分别在边BCAB上且BD=AEAD与CE交于点F则∠DFC的度数为 A．60°B．45°C sketch template

三角形名称图片三角形的名称和三角形分类及图片大山谷图库 sketch template

已知线段a和∠1．1求作一个三角形ABC使一边AB=a∠ABC=∠CAB=∠1．2比较ACBC的长短判断三角形的形状 sketch template

在等边三角形ABC中，点D、E分别在AB、BC边上，连结CD，AE交于点P，且CD=AE，∠ BCD=20°，则∠ APD的度数为 百度教育 sketch template

如图所示在三角形ABC中D为BC的中点AD和BE相交F点已知三角形ABC的面积为42平方厘米求三角形BDF的面积．题目和参考答案 sketch template

若一个三角形 三个内角度数的比为2︰7︰4那么这个三角形是A．直角三角形B．锐角三角形C．钝角三角形D．等边三角形 题目和参考答案——青夏 sketch template

如下图所示， ABC中，AC=BC，∠ACB=30°，∠ADB=45°，那么边长AB是河南华图教育 sketch template

如图所示，已知边长为4的正三角形ABC中，E，F分别为BC和AC的中点，PA=2，且PA⊥平面ABC，设Q是CE的中点（1）求证：AE∥平面 sketch template

百度教育 sketch template

如图所示三角形DEF平移得到三角形ABC已知∠B=45°∠C=65°AB=2cm则∠DFE=65度DE=2cm．题目和参考答案 sketch template

如图所示已知 ABC的六个元素则下列甲乙丙三个三角形中和 ABC全等的图形是A甲乙 B甲丙 C乙丙D乙——青夏教育精英家教�—— sketch template

如图所示，在 ABC中，∠B=60°，AB=AC，点D、E分别在BC、AB上，且BD=AE，AD与CE交于点F．（1）求证： ABC是等边三角 sketch template

如图所示三角形ABC中BD=2DCAF=FDBF=3FE AEF的面积是1cm2求 ABC的面积．题目和参考答案——青夏教育精英 sketch template

如图所示三角形abc是边长为1的正三角形 三角形bdc是顶角为120度的等腰三角形 以d为顶点做一个60是度的角m 百度知道 sketch template

如图所示顶角为36°的等腰三角形其底边与腰之比等于k这样的三角形叫黄�三角形已知腰长AB=1 ABC为第一个黄�三角形 BCD为第 sketch template

如图所示三角形ABC中点XYZ分别在线段AZBXCY上且YZ=2ZCZX=3XAXY=4YB三角形XYZ的面积等于24求 sketch template

如图所示已知边长为3的等边 ABC点F在边BC上CF=1点E是射线BA上一动点以线段EF为边�右侧作等边 EFG直线EGFG交 sketch template

如图所示三角形ABC被线段DE分成三角形BDE和四边形ACDE两部分问三角形BDE的面积是四边形ACDE面积的几分之几题目和参考答案 sketch template

如图所示已知 ABC和 DCE都是等边三角形图中的三角形可以通过旋转相互得到的是A ACE和 BCDB ABF和 CFDC ABC sketch template

如图所示已知 ABC和 DCE都是等边三角形图中的三角形可以通过旋转相互得到的是A ACE和 BCDB ABF和 CFDC ABC sketch template

10．如图所示已知 ABC和 DCE均是等边三角形点BCE在同一条直线上AE与BD交于点OAE与CD交于点GAC与BD交于点F sketch template

如图所示在三角形ABC中∠ABC=45°CD⊥AB与点DBE平分∠ABC 且BE⊥AC于点E与CD相交于点FH是BC边的中点 sketch template

21．如图所示已知D是等腰三角形底边BC上一点它到两腰的距离分别为请你指出当D点在什么位置时并加以证明——青夏教育精英家教�—— sketch template

三角形ABC在正方形�格中的位置如图所示 �格中每个小方格的边长为1个单位长度请根据下列提示作图 出卷� sketch template

如图所示已知等边三角形ABC的边长为1按图中所示的规律用2011个这样的等边三角形镶嵌而成的四边形的�长是．题目和参考答案——青夏 sketch template

6．如图已知ΔABC和ΔABD都是⊙O的内接三角形AC和BD相交于点E则与ΔADE相似的三角形是 A．ΔBCE B．ΔABC C sketch template

如图所示，三角形ABC被分成四个小三角形，其中三个三角形的面积分别为8平方厘米、6平方厘米、12平方厘米，求阴影部分的面积百度教育 sketch template

10．如图所示已知 ABC和 DCE均是等边三角形点BCE在同一条直线上AE与BD交于点OAE与CD交于点GAC与BD交于点F sketch template

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